Last one catches the busyness of the area well. Was there again last week and it's a nice place to visit.
First one needs to be much closer to see what the connection between the guy and the mannequins is. You'll find many street photo "experts" will turn their noses up at mannequin shots as they see them as low hanging fruit.
Comp in two is weird as the Burj pops out of her head and she's facing the other way, unless there's a message I'm missing.?
The silhouette has nice light, but a shift of position may have moved some of the clutter out of the way.
Have you been to the creek and the soukhs? The creek is lovely and a nice chance to get some interesting characters.