Help!

I just can’t think of a half sleeve design! 🤦‍♀️

I want a Koi fish on it for my angel baby (who I named Koi, because of my religion ((Buddhist)) and not knowing the gender), but don’t know what else I want to incorporate!

What would look good with a Koi fish or something that would show its a memorial tattoo?

I am going to be getting it designed soon, but don’t know what to tell the artist! I’m at a complete blank 😕 and help would be appreciated greatly.