Looks great. That's amazingly cheap for a small job, too. Another simple fix for the warping plexi would be to use Lexan. It doesn't warp or yellow under light, heat, or humidity. Otherwise, it's almost the same as plexi.
Here are a few more pics of the fish. I just added 2 more Silver Dollars and my new stingray. I just picked up the package at my local Fedex station and the ray was eating red worms as soon as he went into the tank. He did have a little ammonia burn but the redness is already going away. I was supposed to be receiving a reticulated ray but this motoro came instead. I guess I'll have to upgrade my tank a little sooner than I was planning. I'll add some more pictures soon after I turn my lights back on.