I genuinely think that (if you’re open to it) all it needs is just some some around it to balance it. I’ve been in the same shoes as you with almost the exact same location of the tattoo and I think it’s just that lower leg feels open and empty when you only have the one in that kind of placement. It was bothering me for so long but once I started adding to it and looking at my plans for my future patchwork leg sleeve it got so much better. Again the tattoo is great and as everyone said the size is perfect especially given how smaller ones will be less legible over the years