What does the axle path look like? Placing the shock in the front triangle would make more sense because it is easier to adjust/tune there.
The thing I dont like about the design is the floating BB. Say you are landing a jump. The Pedals move with the suspension and the shock is absorbed for the frame, but not the pedals. You would have to be sitting on the saddle for the suspension to absorb the shock for you. It kindof hard to explain but maybe someone understands.