Need help with a new design

[Hashlife]

Hey guys! Im new on here, and would love your opinions on what to combine with my recent tattoo as im starting a sleeve on my arm, I'll leave a photo below and hope some of you can give me suggestions on what to get next!!

[el twe]

This is a conversation best had with your tattoo artist.  If I were you I'd just add more tattoos around it; they don't have to be "connected" per se.  But if you want one cohesive sleeve then you probably should have started with a design in mind.