Again, the two main variables are temps and humidity. Your temps could be better, but should be fine. humidity is very important.

After that comes the behavioral stuff.

I recently obtained a tiny little hognose, while it feeds and on pinkies, it was progressing the way I think it should. So I changed out the substrate, aspen and went with sand(out of a local wash) The little guy has picked up a lot. feeding on three pinks in two days. Which it did not do before. The sand has a dry area and a moist area around the water bowl. I just noticed a bunch of burrows and such around the bowl. I will go take a pic for you. Will post it later