How long did you leave him alone before trying to feed him? I can't see the pic.. Does he have 2 small, tight fitting hides? Was the FT very warm? Offered at night when it wasn't very bright? From long tongs so you didnt scare the BP or confuse it from the heat of your hand?

You can also try dipping the head in chicken broth. Pre scenting with some dirty rodent bedding from the pet store placed in a corner if the tank before feeding.

It can take a few tries. With each rejection, toss the rodent, wait about 4-5 days, and try again.