I've said it before and I'll say it again. It was Timothy's own dumbass fault for being at the bottom of the food chain. The only thing Donnie should feel bad about is not putting his naginata through Mutagen Man's brain and ending his suffering.
Awwwwww, poor Donnie boy. Love your emotion in this and the details are great, as usual. I did feel a bit bad for Donnie after that episode, he was kind of like the Pulverizer's protector or guardian at the time, and watching him get mutated was probably awful for him. Just, poor baby!
Oh man, so sad for Donnie! This is just heartwrenching and beautiful. I've had it open in a browser window, admiring it for a couple days now. The attention to detail on his shell and plastron: love love love! This is wonderful! I love all your stuff, but this one just really gets me everytime.
....and he scares me...it's just creepy, because he didn't become a turtle like I expected (seeing as normally it's the last animal you touch/have had the most contact with) he turned into a giant glob where you could see his insides and ya...it just scares me