Updating progress on the arch, and Unreal 4!

Since the announcement of Unreal Engine 4 going into a subscription model, it is now one of the most affordable professional quality tool available.  I immediately snatched up a license last week and started playing with it.  I would like to render the arch in the engine and I hope it will turn out great.  Here's the finished bake and making progress on texturing in a complete pbr process.  Rendered in toolbag 2.