From the key angle I think you used a profile from the Z, X, C, V........ etc row. Might be better if you use the profile from Esc, F1, F2..... etc row.
If you don't know what I mean by profile, refer to this:
http://keycapsdirect.com/images/key-caps/angle3.jpgBut yeah it's just because people typically display their novelty keycaps on the top row. Hope this helps.