Those log things are not good hides. You need two identical hides that are nice and snug with a single opening. Plastic plant pots and bowls from the $ store work great!
You also need to cover the back and both sides of the tank with background and insulation of some sort (cork or foam board work best) and I can't tell by the picture but make sure your screen top is either foil covered or has a piece of plexiglass over it to keep temps and humidity in.
Also, you need to get a UTH pad or flexwatt heat tape and a thermostat for the heat. Lamps are good for boosts, but not as the main source. Also, a digital thermometer with probe is the best way to measure temps.
Add fake plants, as long as they aren't sharp, to fill in the open space. And the dish should be something heavy so they can't tip it over. Ceramic cat bowls work very well.