They do appear to be a Frapp but without lineage I can’t guarantee that.
Males can be late bloomers and develop the hemipene bulge when they are older. We’d need to see a clear photo of the Gecko’s belly, more specifically above the vent. If it is a male there will be a line of femoral pores, here is an example:
Are they acting stressed while being handled? The best thing you can do is be patient, and understand that your Crestie won’t always be handleable. Socializing Cresties, like with any reptile, takes a while and progress is not linear.
You need to practice caution while handling because they can be extremely fast when they are startled, move slowly when handling and stay calm.
They jump a lot, so make sure they aren’t too far from any surface in the event that they do jump out of your reach. Long falls can injure them.
I think the enclosure is beautiful, my only reccomendation is to add more hides like the one in the top middle of the enclosure. Plants (which are very much so plentiful in your setup) are good for cover but they don’t provide that dark snug area Cresties like to hide in.
Crested Geckos are nocturnal, you won’t likely see much activity from them during the day or when the bright light is on, so make sure you have it off at night.
If they aren’t eating it already, I reccomend feeding them the Pangea Growth and Breeding formula, it includes insects in it so feeding them extra insects is optional. It has all the nutrients your gecko needs, just mix about a 1:1 ratio of powder to water or until the mixture resembles thick ketchup in a feeding cup (should only fill about 1/4 of the cup) 2-3 times a week.
Some people reccomend free feeding the mixture but I find that method attracts way too many fruit flies… I feed my Geckos 2-3 times a week and they stay at a good weight that way (babies might need it a bit more often, like 3-4 times). The fruit flies will be inevitable anyway especially during the summer, so make sure that any uneaten CG food is taken out and disposed.
You need to ensure you are misting the enclosure 2x a day, with a 10-12 hour buffer between mistings. Cresties do good at 65-70% humidity and temperatures between 68-78°F. Additional heating is not needed unless your room temps drop below the minimum during winter. If you set up an automatic mister with a timer I’d reccomend 10-15 seconds of misting with 10-12 hours between mistings.