Hi there, I'd guess he's about 4-6 weeks old. He's a cutie , no real way to tell exactly how the color will turn out because they change as they grow. Some gain or lose color and patterns. He may end up with lighter orange + a bit of yellow with smoky sidebars which would be very pretty. Looks like you have a good set up and a good supply of food for him/her so hopefully he'll grow to be a big bad beardie.