Fin, normal or sick? Skin question with pics.

[TheMightyFin]

Fin, a Green Tree Frog we've had for about 2-3 weeks seems healthy however has in the past day or so seemed to develop some blotchy-ness on his skin; pictures attached.

Environment:
Fin lives in a 10 gal hex tank, pic attached.
Temp is always between 65 - 85F, red light bulb turned on/off to keep in range.
Humidity normally in 70-80% range; running a bit high in the pic because it was misted it pretty well not long before pics were taken.
He is misted with distilled water 1-2x a day.
Coconut husk floor ~1-1.5" deep w stone substrate; drainage seems good, doesnt get overly wet and drys out in about 5-6 days.
All materials were bought new from pet store.

Food:
Fin is fed mostly crickets which are "gut loaded" with cricket food from pet store that claims to be for gut loading. Occasionally fed a wax worm. Once fed a small trout worm [common worm] All food comes from a pet store.

Activity:
Fin has been making mating calls, usually during AM or late evening, and moves in quickly on crickets placed in tank.
Spends most of his time atop palm trees in tank.
At night he can be found moving around and taking a swim.
He doesnt seem lethargic, but does spend hours on end sitting atop palm tree; just like in pics.

Handling:
Fin's only been picked up twice, both times today after hands were washed and rinsed well with distilled water. Otherwise he's never been touched since leaving pet store.

Concern/skin:
Concern is blochy-ness on skin, not color.
Understand color change from bright to dark green and back is normal. However the blotchy-ness seemed odd.
Thought it might be shedding of skin.
The 1st & 3rd pictures best represent the condition we're seeing. And yes the blochy-ness does seem to change color from whitish to brownish depending upon Fin's skin color at the time.

Since frogs have very sensitive, and it's health is very critical to their health, figured we'd ask before things progressed any further.

Any feedback, thoughts or help is greatly appreciated.

Thanks!
Fin