I'm with Nocturnal on this one. Fan art doesn't count as evidence to anyone's inclusion. Paul didn't draw either of the pictures that have Cloud.
I do, however, think that he's been hinting at Crash.
I'll take that as no, have a good heads up in the clouds. They be there for long when lightning strikes. Also, before I go the hints I posted are credible because the person that posted them is credible.
But that's just it. You haven't posted hints. You posted observations. You said a wall was pink and that that was a hint. Have you ever considered that the wall was pink because, well, the wall just happens to be pink?
That's like saying that since Paul posted a picture of himself doing push-ups in the grass, that Flower is confirmed. You avoid the main subject of the picture and try to work something in it to be a hint for Lightning.
Now please, shut up about your waifu.