Mine like to be juiced up to 40c. They LOVE heat. But must have the oppurtunity of a low to mid 20s if possible.
So yours looks good just needs more top heat and hopefully you wont affect the 22c at the bottom to much.
If you do add vents perhaps.
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"Ya cant trust a pig with watermelon ya know"
Don`t be nervous, mate.
Observation is the most important.
Not only temparature, but also anything.
Where your beardie stays at most of the time?
If your animal eats well, it should be ok!