References - Revisited

Following the great advice from Elias Keppens, Didier Forest and oVan, I made some corrections to the icon.

Changes made:
- The perspective of the inset lines on the pole have been modified to match the perspective when the camera is viewing from the front straight on.
- The perspective on the front part of the darker part of the panel has been corrected, now it gets a bit thinner at the top.
- The top highlight on the panels now fade off as they approach the pole to increase the sense of depht.

What do you think? Better?