I remember a review that explained that the difference of the novels with the graphics work was... it wasn't as colorful and funny. And I kind of get the point. Girl genius novels are, all in all, very raw. The graphics work is colorful, funny and cartoonish. It's adventures beyond the impossible, with characters that are most of the time opera actors than real people. The world is brutal, violent, broken and the heroes barely make a difference between the plots after almost 20 years of real time, yet you can't stop feeling uplifted, entertained, hopeful and excited about their adventures. The authors don't try to hide the darkest part of the world, but it was originally treated as a canvas, as a background to explain malevolent villains and the larger than life heroes it needed.
In many ways, I would describe it essence as almost pratchianian. But the books, the books just by looking at the art, are put in the "real world". There is no cartoonish characters or violence, even when it (fails) to transplant scenes from the comic to the page. Thanks to the footnotes and the more complex description of the scenes (in many instances of the comic, characters either smirked or rolled their eyes while in here, they cry, scream, they whisper and whimper) take out any theatrics and just left the human reaction of the situation. And the world and the characters Phil and Kaja had created, as with many things you take a moment to think about them, are broken. Warped. Sick.
The mad scientist is monster with everything it encompasses. You can see and root for Otto in his quest to eradicate them because you can't, just can't forgive them. In many ways, if the graphic novel is Discworld, this is more "Song of Ice and Fire" and "Malazan book of the fallen". There is no curtain to stop the horrors from hitting you right in the face. No actors getting up after the tragedies that keep occurring. It's in many ways a mean, disgusting world and you just hope that Agatha can be a somewhat competent ruler and bring somewhat peace to the world. It truly, honestly makes the Baron the ultimate paragon that has ever existed in the world, far better than the heterodynes boys could ever be and if you know about the comic, a more tragic figure.
There are no slapsticks.
There is barely any humor if you haven't read the comic beforehand.
It's very entertaining.
But I think I'm going to keep the graphic novel, because the more I immerse in this world, the more it depresses me.
And also, the death ray of Agatha is pure garbage. Seriously, it's beyond broken and the fact that not a single weapon has appeared in the comic ever since or that Agatha didn't reconstruct is the biggest plot hole in the entire series. I wish they had toned down the weapon or remove it completely, because how it breaks flow from the entire setting and in the next books. Seriously, they should stop trying to put their colorful world into this version of the book, because it really doesn't work.