Yep, I have a Leopard now (my other one died recently) and am probably getting another one tonight.
First of all, get it off the sand ASAP. Sand can become impacted and cause health issues or kill them (edit: even the reptile sand that is supposedly safe is a no no). I use paper towels for the floors of my tanks. They're cheap and easy to switch out when they shit all over them. BTW, never, never, never feed them wax worms. They're too fatty and can cause health issues as well. Mine that died had a fatty liver and large fat deposits from eating them.
It does look healthy and the tail looks to be ok. They're pretty hardy little lizards overall. It's also a good idea to keep a little bowl of powdered calcium in the tank for them to lick. I do it because I only feed meal worms (I truly hate crickets) and don't powder them with calcium when feeding. If it quits eating, don't worry about it at first. Assholemouth recently quit eating for about 5 months. He'd eat maybe 5-10 meal worms a month during that time. He lost a bunch of weight but now he's eating again and has put some back on.
If you think of any questions feel free to shoot me a PM.
This is Assholemouth. He's a Murphy's Patternless Leopard.