I dunno...I like spooky aesthetics I guess, so like creepy/ghostly/Halloween-y(??) kinda designs...and nothing too expensive of course :v I would only pay around a maximum of 60 points, but 100-200 would be pushing it a little :v
I usually look for characters that aren't species or animals. Something different, Demons, monsters, such stuff. But mostly i am rather looking for color plattes i like. This is why i try to make my OCs not canines or feline, but i can't deny it i absolutely i adore felines.
I usually looks for something with colors that work well together or a theme that fits the adoptable. Im not too too fond of over the top detailed designs but when done well they could look really nice. Sorry that my advice isnt that good ;v;