Sure looks good from here. Tall as it is though, you may have to elevate some things to allow the lizard closer access to the UV fixture & basking light. You may want to enlarge the cool side vent to maybe twice what you have now. My enclosures are very similar in construction but not as high. I like the idea of only one vent but prefer it to be fairly large. You want a good air flow to prevent stagnation but not so much that it screws up your temps.
Most of mine have dual incandescent fixtures as does yours but I've seldom found a need for the one on the cool end. Nipples on a boar, I guess. Not very functional but nice to have just in case...
Dan.