oooo this is a good thread!!
- writing it all down/explaining it is definitely the hardest part for me... if that counts. i can have the story/personality/etc. of a character figured out very in-depth but i have such a hard time conveying it through writing/words! only like four of my characters have "complete" profiles here for this reason... whoops
- finding the right balance between simplicity and needed complexity/consistency in my world. i.e. i don't really want to design and draw full sets of armor on the dragons in my story—their designs are already complex enough as-is—but they're fighting a war... i think they need them LOL
- reusing the same traits in my designs... over and over again......... what, this is only my 16th character with curved ram horns in the same story, why do you ask?
- i'm not the worst with names in general, but naming my characters after things that don't exist in their world and getting way too attached to those names is going to come back to bite me in the butt eventually.