Sorry to add confusion, ? but my impression in three of those photos was that you have a male...
without the flashlight, try holding him with tail up, and turned kinda sideways to the light source, so the shadows will define the image more clearly. Have to agree with Cooperdragon, (who is one of our long time experts in all things Beardie--when Cooper speaks, I listen! ha, ha!) I definitely thought I saw two bumps. Maybe some of our other members could also give their input, until we reach a majority?
Naming is difficult, sometimes, isn't it? If in doubt, wait...they sometimes name themselves, by showing their personality. They hate changes of environment, owners, etc., so it may be a few weeks before his/her personality really begins to shine. Then, you will have an "aha!" moment, and no more doubts.
My boy was already named when I took him over, but the name gradually morphed from Dez, to Dezi, to DeziLu. So, whatever you decide, it need not be written in stone. Of course, Dezi is also comfortable with being referred to as Your highness, His Lizardness, master...you get the idea!
Let us know which name you decide upon. And keep posting! Perhaps a photo with a view from the other end, ha, ha!