No offence, but one thing that makes me doubt about being it carbon, is the rivetted brake bridge, which would be a very, very strange construction. Further, how are the chainstays connected to the lug (rear dropout)? If it is about carbon tube to steel or alu dropouts, there are practically no other options then bonding, which would be very visable.
For me (I have to admit I am certainly no expert in bikes, but have been long enough in the carbon business) the total is a bit strange. But heh, I learn here very day!