I don't see anything that I can identify as MLP in there. The felt flowers on the ribbon belong to a Snugglebumm and the pink skirt with the white polka dots on the bottom left belongs to a Cabbage Patch Pin-Up doll. A couple other items look vaguely familiar but I can't place them offhand.
I don't recognize anything as MLP. The yellow "grass" skirt is Barbie, specifically Hawaiian Fun Skipper. The pink mesh scrunchie-looking thing with the aqua and pink triangles and squares is also Barbie - Style Magic Barbie.