Great looking frog!

Just something I noticed in the pictures, if you're not putting him in a different container to feed him, you should remove the rocks and moss. Those are both impaction risks, because the frog will eat them accidentally when it lunges for food. Eco-earth cocofiber is good bedding and doesn't cause impaction if they eat it.

I've heard you can feed the crickets carrots to bring out red/orange in a frog, but that might just be a wives' tale.