Mathias,  Thanks for you comprehensive and helpful reply.   

That screengrab was from within Maya and not of the running game thats why some of moireing and no mip mapping was happening. 

Street texture will be replaced with some less noisey and cleaner pattern.
Definitely these clouds need to go, thanks for the headsup.
Sky also doesnt take so much space in the game cam.

Attached is image from within unity.  (UI Hud is placeholder only)
Character will be walking/balancing/running on the elevated rope.




Thanks