hmm :) the only designs I've ever sold were the collab adopts, so I may not be the best person to ask this particular question..! but I suppose, if you're confident in your designing ability, other people should be able to pick up on the quality of your work. I'd suggest putting your best effort into the presentation of the design, create an "atmosphere" around it in the background & text caption... I know very popular artists who are known for their adopts tend to stick to a very particular presentation style lining up designs on sheets using their own bases, but since my style is dependent on shape language I'm not fond of doing it that way X) lean into your own interests! and try not to focus so much on "selling", but rather... enjoy the process of "creating".