@skor, first and foremost you want to ensure your letters are all proportional to each other n as n30n said you want to make sure you got your alignment right, just tighten it up a little and you got a nice simple.
Also, the 3d should all have the similar depth, the 3d on top is pretty uniform but then under the leg of the R it's short n stubby.
I'm no pro but practice makes perfect