I think the GI settings need to be adjusted, you can see some blotchiness along the top of the walls. The refractive index on the glass vases seem a little too high. Something else that stood out to me was whats going on below the coffee table.

I'm no expert but the first 2 animations kinda just scrambled out in one big puff, not very natural looking. The third one wouldn't play for me. Keep truckin.