Recently a number of builders (mostly CC members) collaborated on a massive display at the Great Western LEGO Show in England. These builders were Peggyjdb, Derfel Cadarn, Cuahchic, Workshysteve, Kǻrrde, Invicta Bricks, Malravion, and SlyOwl. Please see those builders' photostreams for their individual MOCs and a lot more views of this great display.
-Edit- Rouge Bantha's awesome dragon was added to the display at some point during the show.
This....this words cannot express....I am so amafjed afdffjdaf dfdjka....excuse me, I lost my jaw on the floor.
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Philippians 4:13
That photo of your plan might be a good resource for others who are planning on doing a collaboration in the future. It is usually a good idea to emulate those who have succeeded before you!