Playhouse in CAD X

Back to the playhouse.  I designed the framing for the "loft" area.  Here's a shot with all the framing, which makes the loft (in white) hard to see.

Here's a shot without the roof and the west wall to make the loft easier to see.  I shaped the loft floor like and L.  I did this to make the loft feel a little bigger, but now I think this requires additional support columns, which will interfere with the "first floor" floor space.