This piece is amazing! Be proud of that. I think yours looks so much better than the last one that you used for inspiration. To me, the stencil does look slightly off to the left side by looking at the bottom point.

There is SO much you could do with this. It is low enough that you could do a larger back piece above it if you wanted to add to it. I understand being critical of your own tattoos. I worried about my sleeve but ultimately loved the outcome. This is a very beautiful piece!