Very pretty boy but yes, his tank is in need of some tlc. Being in Fort Worth, you are likely going to have some humidity issues... I would address this while making all sorts of changes now. My suggestions would mirror others but let me add a few things to allow for future humidity probs.
1- Substrate.... eco earth or repti bark both hold in humidity better. I use a combo of both.
2- The water bowl is a pretty decent size, placed partially over the hot side will held evaporate water faster.
3- Use Foil and tape to cover about 75% of the top.
Now..... no thermometer? Definitely need one. The accurite with probe can be purchase at Wal Mart for $12. Gives you 2 temp readings and humidity %.
Do you have a UHT hooked up to a thermostat???? This is critical as an unregulated UTH can reach temps of 130 degrees. Bad burns in no time.
Once all of these are managed, leave him be for a week. Give him a big fat med size rat and let him go to town. Once he's settled and digested I'll bet he's a happier camper.