Perhaps I am indeed being a trifle too harsh here, but one star off immediately and with a huge and nastily hissing angry exclamation of "bah humbug" because on the cover of Mariah Marsden's Anne of Green Gables: A Graphic Novel Lucy Maud Montgomery's name (the name of the actual and original author of Anne of Green Gables) is NOT EVEN shown. And as a lifelong and devoted fan of Lucy Maud Montgomery's writing (and not only of her Anne of Green Gables series either), I find this omission on the book cover for Anne of Green Gables: A Graphic Novel both massively insulting to Montgomery herself and also rather academically dishonest as well.
Yes, there is indeed a dedication to Lucy Maud Montgomery (which I guess is somewhat of a positive) within the book proper, but sorry, even though I am more than well aware of the fact that the writing, that the oeuvre of Lucy Maud Montgomery is now basically in the so-called area of public domain, for a graphic novel adapted from and based on one of the most well-known and beloved Canadian children's classics of ALL time, for Mariah Marsden (and for Andrews McMeel Publishing) to NOT prominently place Montgomery's name right on the cover page (as the original author), this is to and for me an almost unforgivable faux pas (especially since Anne of Green Gables: A Graphic Novel mostly remains pretty close to Lucy Maud Montgomery's original text, with Mariah Marsden obviously often using verbatim entire passages of the original novel of Anne of Green Gables, not really an issue for me, IF Montgomery's name had also been placed on the front cover, but which is unfortunately NOT the case for Anne of Green Gables: A Graphic Novel).
Now with regard to Brenna Thummler presented artwork for Anne of Green Gables: A Graphic Novel (and her illustrations are, because this is a graphic novel adaptation of Anne of Green Gables, indeed as important and as essential a part of the whole and entire reading experience as Mariah Marsden's textual adaption is), while definitely not in any way inappropriate or visually offensive, I am sorry to say that Thummler's pictorial images are also sometimes if not even rather way too often not all that much to my aesthetic and personal tastes (and really generally not as how I have always visualised Anne of Green Gables when I am reading it). And that is not to say that I have vehemently despised the art for Anne of Green Gables: A Graphic Novel, as there are indeed a number of illustrations I have actually rather enjoyed (and I do think that for the most part Brenna Thummler does manage to visually capture a realistic and authentic feeling historical ambience). However, both the general colour schemes used in the illustrations (too much pink and too many pastel like hues, and Anne Shirely with her red hair clad in pink, that really does look simply terrible) and how some of the characters for Anne of Green Gables: A Graphic Novel are depicted do leave more than a bit for me to be personally desired (I have liked neither the images of Matthew Cuthbert who to my eyes usually appears as much too young a man nor of Anne Shirley herself who truly tends to appear quite physically ugly to the extreme at times, and with facial expressions that especially if and when she is very upset or ecstatically happy look not particularly natural but rather like a grimacing caricature), not to mention that both Gilbert Blythe and Diana Barry have pretty wan and expressionless countenances, with Gilbert sometimes even appearing more than a trifle effeminate. And after Matthew Cuthbert's death, why the heck does it say in Anne of Green Gables: A Graphic Novel on the frigging headstone that Matthew died in 1918? Come on, did the adapter and illustrator not read the novels, as everyone knows that Anne Shirley was a child in the 1870s, because in 1918, during WWI, she was a middle aged wife with four children (including a son who had fallen in battle in the trenches of France, see the last of the Anne books, see Rilla of Ingleside).
Finally, I should also and definitely point out that I have indeed and certainly much enjoyed and appreciated that unlike so many (actually unlike the vast majority of) graphic novels I have read to date, the presented text of Anne of Green Gables: A Graphic Novel thankfully and appreciatively appears in a relatively large print and font size (making the printed words easy to read even for those of us with ageing eyes). And yes, again appreciatively (and as already alluded to above) much of Mariah Marsden's narrative does correspond pretty closely to the original novel (which is of supreme importance to and for me, as I would have simply despised it if the adapted textual presentation of Anne of Green Gables: A Graphic Novel had veered too far from Lucy Maud Montgomery's original words). So therefore, as far as a graphic novel adaption of Anne of Green Gables goes, Anne of Green Gables: A Graphic Novel definitely looks, feels and reads like a generally successful, enjoyable endeavour (and one that I would also generally and without much hesitation recommend to readers interested in graphic novel renditions of classic children's literature). However, my rather lacklustre reaction to Brenna Thummler's artwork and the oh so very much personally annoying and problematic issue that Lucy Maud Montgomery's name is not listed as it in my opinion should be (on the book front cover) makes me only willing and able to rank Anne of Green Gables: A Graphic Novel with two and a half stars (rounded up to a low three star ranking, as I do appreciate the efforts of both author and illustrator and also must realise that not everyone will be as upset with the author's name, with Lucy Maud Montgomery's name not being shown on the book front cover as I have been, and well, art and book illustrations, they are always personal and based on individual tastes, likes and dislikes).