It's okay
For a tattoo you would need the entire subject matter to be inside the picture.
If this is a scan from a sketch book, as it looks like, it would be better to run the picture through a art program to crop the extra white space, and at the very least auto adjust the scan. Also the top of the scroll should really have a line, as is the eye has to imply the edge. The side of the scroll rolled up on the right is squished and conflicts with the implied thickness of the roll on the left, try making it a bit more circular, and that will help continue your theme a bit better.
I see lots of potential, and you should keep practicing, but the current execution is sloppy and shows little effort.