ok, everyone-- I seemed to not have made this point clear, but I make GRAPHICS, not drawings. I don't draw the pictures that I use-- I only manipulate them to create an overall aesthetically pleasing cover.
e.g. if you want me to make a cover with a girl with butterfly wings but a mermaid's tail as well as devil's horns and eyes that glow green singing on top of a gigantic pirate's boat... I won't be able to do that. if you want me to do an action scene with a guy holding a special weapon that's made of the teeth of a gigantic whale while he's kicking another man in the face-- I won't be able to do that. there's simply no images online that look like that.
I can manipulate images to a certain point-- such as photoshopping a mermaid's tail or a set of butterfly wings onto someone, but anything too detailed is just... I can't. unless you provide me the images that you want me to use, I wouldn't be able to do the things that a lot of you all request.
you need to give me the space to allow me to design what I want. we are two different people-- I cannot create what you see in your mind because I think differently than you. also, please, as @/kingicez stated before, ask nicely? it's not really fun to work with people who are demanding for me to do something for them-- I'm doing this for free. gratitude is always welcome here.
tl;dr... please don't request anything too detailed because I wouldn't be able to create what you see. I need basic details, such as the character's genders, ethnicities, what sorts of clothes they wear, but I wouldn't be able to work with TOO many details. give me creative liberties. to all previous requests, I will be working on them soon, and will inform the requesters if their request is too detailed and I can't complete it. from now on, however, requests that are too detailed will promptly be ignored. :/