O-o-o-h. If Mimi's ribbon was red we'd have a matching set, because I bet those were Dexter's glasses (same round shape). Mimi could have still gotten her pink ribbon from Blossom, but it would not be her old ribbon, which she is clearly not currently wearing. But the lab coat is cool, for it adds motion flow.
Ah, Mimi adores her mother. Wouldn't it be both ridiculous and awesome if it was later revealed that Mimi was Dexter's daughter instead of HIM's, and that HIm merely corrupted her afterward? It'd satisfy the BlossomxDexter shippers, even if Dex is already dead.
'Though this probably means Blossom is about to go down, since this is a vision of Mimi's worst fear. To quote my oldest and favourite vagabond, "I've got a bad feeling about this."
EDIT: My mistake: In Older and Wiser, Blossom has her own pair of round-rim glasses. She also has her red ribbon, which she's missing now so you know some stuff went down. Blossom's glasses just looked so much like Dexter's when she took them off, I thought 'how tragic yet cool is that?'