first post, my tattoos, what fill?

[timeforliving]

ive been working on my half sleeve for a while now 
(money keeps running low).
this is what i have so far:

bit of flash glare, a few bits that need touching up on this one...



and quite a lot that needs touching up on this one.








i'm gonna get two swallows either side of the girls face, 
and some smaller roses with the large one,
but i'm completely stuck as to what to get to fill in 
the gaps once that's done, as a sort of background.
any suggestions?
thanks!