The enclosure is too small - Russians are very active and need 4'x8' (1.5 x 2.2 metres) minimum.From the pictures above.
The substrate is too dry. Replace with coco coir or orchid bark that you can tip water into and mix up so it's evenly damp (not wet)
Reptile bowls are not suitable - they're a tipping hazard and hard for a tort to use. Use a piece of flat rock or slate for food that will help with beak maintenance as your tort eats. Use a terracotta plant saucer sunk into the substrate as a water bowl.
Some plants in the enclosure like spider plant (sink the pot into the substrate) provide shelter and also give your tort something to browse on.
You need 35C directly under the basking lamp. The tube UVB is good.