Those renders are great !! But you hahe to remember the limits on planeshift images:
-simple common ojects 200 triangle faces
-simple creatures or more complex objects 400-800 triangle faces
-characters 1000 (up to 2000) triangle faces
Source: Arcane Falcon\'s goide to contibuting.
If you want to contribure images to PS devs you cant send that axe for example (round edges always have tons of polygons). But i think that that dimond would qualify
