I am a big fan of split color scheme tags and I tried couple of times to make one but hell, I am still not on that level to be able to do that properly. Lol
Meaning, I really like the idea of this tag, however, maybe it's a little bit plain to me, and I would work on depth a little bit more. It seems to me that you had good vision on how to make split color scheme but some parts of it were not executed well, or not well for my taste.
But, overall, good job. *_*