This isn't done yet, but I have some questions as to completing the floors and the roof, structurally. I will post some pictures, then some questions. Note that all the lights are simply for the photos, except for the two in the garage. I like this build so far, and I want it to look nice.

Back side.

Other end.

Front side.

Aerial into the roof.
Question 1: All of the yellow 2X2s are supporting the floor beneath it. How should I remove them and keep the floor the way it is? I was thinking of using appropriately placed furniture.

Entrance.

Inside the garages.
Question 2: I like the roof here, but I have no idea how to make it around these curves and still look good. Any ideas?
Thanks!
Please provide constructive criticism and you can indeed rate.