Look at the angle of the exterior wall of the painting compared to the BL pic, then compare the distance between the callgirl/businessman couple and the office worker. The wall angle of the painting has a lesser angle of depression than that of the picture. Rotating the picture would do nothing. The only way to fix the angle is to make the bar deeper.
@All other angle-related posts:
The angle is not the only problem, the grid is the bigger problem.

Besides the bar being a triangle, which even with Wedges that wouldn't work right...
The painting is not really on a "grid", the road is also sightly curved which would've looked weird no matter how I would've done it, and not only.
Either way, the angle could've been better though, indeed, but the field of view of the painting and Blockland is different anyway.