There is no aztec pattern on the hull of the Enterprise-c...technically. There is however, a pattern of duck egg, light duck egg, and darker duck egg blues on the hull. There more in giant sections and concentric rings rather than alternating tiny panels like an aztec scheme. No doubt it was due to time constraints, as the ship was built for one episode of The Next Generation.
Here's an example:
http://www.ex-astris-scientia.org/scans/mike/1701c-mike.jpg
Other references, including pictures of the actual studio model itself:
http://www.ex-astris-scientia.org/scans/ambassador1.htm
Hope it helps, and have fun! Can't wait to see pictures!
David