He definately looks like he has red coloring. His back looks like it might be in shed. Beardies don't always shed evenly and sometimes comes of in parts. There are degrees of red some have more some less but it definately looks like less when in shed. Since he is pretty small you may want to try feeding him 5-6 crickets at a time so not to freak him out or overwelm him. Also you may want to remove hides and branches when feeding so the crickets don't hide and you can keep track of what he ate. He may need to settle in a little before he starts to eat. You want to make sure his temps get into the upper 90's lower 100's during the day, that will get his metabolism going and make him eat. Try not handling him for a few days so he settles in ( I know it's tough, they are so dam cute). he should have a good appetite at his age but as adults they slow down on eating since they are not growing so fast. Beardies make great pets and should be years of fun. If he is pooping then he is eating so check for that too. As far as black circles you show it in pics? You're not talking about his earholes I assume.