There is also this discussion here: How do I make a 3d room effect in g develop?
The summary of this and the discussion above is:
- According to @Silver-Streak you need a flat image of a room that shows a 3D perspective and the camera is just moving left and right. (Pretty much like the image you have posted).
or
- You use the displacement layer effect in Gdevelop (you go to layers and choose displacement from the drop-down menu as effect). You need a displacement map for that which @Robot-Man has kindly posted in the first linked discusssion.