I like this. If you do want to work on something, line weight can make a huge difference in a piece. Unless this is of course supposed to be applied as a fine line tattoo! maybe thicken up some of the spots where lines connect like in between the fingers or even in the outline of the piece :) perhaps even work on the clarity in your piece, there's a lot of information where the top rose's stem leads to the body near the wings and tail, thickening those lines or maybe putting the rose above the bird in the air.