I like those reimagining of the two seaters.
The different contour of the spine area immediately behind the cockpit would probably require redesgn or relocation of the air brake.
However, I have a foggy recollection of early concepts drawings and models of the Typhoon where it had airbrakes either side of the tail fin, like the Tornado. So I suppose reverting to that could work if you couldn't have the brake on the spine.