can i re use or modify your art? its really cool looking crow
That's not really true. There are hardly any games that use the developer's own art. Most have a team or use assets that are free or purchased. There's nothing wrong with asking. What's wrong is when the assets are used without permission. Don't discourage people from making games just because they don't do their own art.
Not that they have this crow, but here is a list of Gameboy stuff on Itch.io that includes some free assets (only if they say they're free of course): https://itch.io/c/1313741/gameboy-homebrew