The one with the reptoid head looked photoshopped to me, your take? Like I need to ask.
My thing would be that none of this looks like what we know of Egyptian art.
They didn't do a lot of foreshortening or perspective drawings, their art is predominantly flat and 2d.
Kmt_Sesh will probably correct me, but I just don't know of anything.
For that matter, some of these I think the guy is just kidding.
Like the group of pots or side corridor, makes me wonder if maybe he's just making it up.