Technically neither is correct. Although you can have the speakers as they are in your first image it is better to have them angled/toed in towards the primary listening position rather than firing at 90° perpendicular or in parallel to the walls.
The rears and back speakers also work better if placed higher up than the front speakers. It is suggested to try to place them abour 2m up from floor. This is obviously not practical in your case if using floorstanders for surround duties. The height helps prevent the speakers from becoming too directional helping to disperse the rear effects.
At some point cosmetics need to take over for a living room or non-dedicated theater. I would place them correctly during a movie, then place them in a way that looks pleasing to the eye at all other times. But if your asking which is correct for strictly 5.1 setup then listen to the above comments. By the way, those are very nice rear speakers.