Ooh, I like it! It's very 'minimalistic', just a few strokes of ink, but it's perfection. I really think that - not just saying it to be nice. I like stuff like this.

I was actually planning on getting a tattoo of barbed wire on my left leg after I'd beaten the illness there.. but that didn't work out as that leg had to be amputated. Not a lot of "beating the illness" there.
I hope this is/will be/will remain your "beaten the SI" tattoo, though.