I tend to make semi-detailed refs, so I tend to do separate sheets and just link them in the description. None of my characters have particularly small separate forms so I think it might be a bit overwhelming to have 2 large forms on one very detailed sheet. I also don't have to specify what form I want them in if I commission someone. Instead, I can just link the ref of whichever form I want them in
my main sona has so many diff forms i just make separates for each. if u make diff refs I like when people link to their othe forms in the description! especially usefull if someome wants to make u fanart and theres a nice set of links to follow :3
Depends on the amount of details n sizes I think! Like one of my characters has a simple alternate rat form that he uses, so it's small enough to just pop into the corner. But if your character changes from a detailed design to a bigger and more detailed form, then you probs want another ref so it's not overwhelming.
True! Some characters have like 5 forms so in those cases, I think separate sheets would be the best X'D But I think if a character has only one other form other the one they frequent, then maybe it's okay to put them in one sheet o3o