Not bad.. You'll need to match up your hides, preferably by getting rid of the log hide (not a favorite of BP's usually) and replacing with an identical rock hide on the hot side. I would definately suggest covering part of the screen top to hold in the moisture. You'll need to experiment with that to get the proportions of covered/uncovered correct for your situation. You might also want to bump your warm/cool temps up a couple degrees. 90/80 is acceptable, but 92-94/82-84 is considered ideal.

Also get a digital thermometer/hygrometer. The cheap accurite model at wal-mart costs $11 and has an indoor/outdoor temp feature that uses a wired probe to get the ouside temp. Set the probe up on the floor of the enclosure in the center of your hot spot UNDER your hide and attach (with tape or similar) the main body which contains the other temp probe and the hygrometer probe to the cool end.