No monkey business
Hello there! I have some ideas for your project, i was thinking about a jungle or paradise island theme, with some palm trees and that sort of things, but the main idea would be deppending on what is exactly that your ap does and what is your idea for it. It can be made with a realistic looking style or more like a cartoon as well, it will be up to you.
i've been working with 3d modeling programs for about a decade now, I believe that i can be helpful to your project!
hope to talk to you soon
FrameFX - Graphic Solutions