I say the volume and tone nobs on the bottom of the guitar poke out a little far and there are some kinda-noticable creases, but pretty good other than that.
Dido on everything Raul has said and showed you how to do... Something I noticed that he didn't mention, is notice the glass and the box are separate. There is a seem all along the edges. So either make the glass piece separate from the box and extrude those edges more in... or take that seem you got and extrude that…