Fantastic. She loves her plastic friend; ) just a notation on the setup; looks great. Make sure not to keep the substrate too wet, keep the humidity high but the ground she walks on dry. Radiata are fom very humid climate but dry earth. Don't want any soft shell development or shell rot starting. I recommend to any star or radiated species keeper to scrub their tortoise once another with betadine or chlorohexidine to keep a clean shell. Everything looks great though. You will love your radiated they are an awesome tortoise. : )
The soil is fine, you can wet the substrate just allow the top layer to dry out. I'm assuming this photo was taken right after the setup was done. Nice Rad, should have some thick banding.