My Burm doesnt like those bright lights and also his enclosure is only Glass in the front. You have a very tiny baby there so he is feeling vulnerable. All th glass to him is like being in the middle of a field without protection.
Cover the 3 sides woth insulation foam or carboard. That will give him security.. And Id change that heat bulb to a CHE so ther isnt LIGHT shining on him in order to heat him. For display purposes a Light is ok, then turn it back off when your done looking.
Make sure all your Heat is regulated with atleast dimmer/tstats.. To cool/to hot/ no Humidity= not feeding.
Try the feeding 5 days after you make the changes.. Give him some time to adjust and try the feeding after 8pm.
He is Gorgeous. When I got mine 20 years ago all they had were Albino or Normal... The color patterns today are amazing.
PS: this guy is going to grow kike a weed. Mine got 5' within the first year.. Think about PVC enclosures for the next purchase. He will need a 6' minimum, I have a 8' for mine.
