Gabbit's are looking great, vykkers are looking... naked... and I love the knew layout, particularly the merging of the cafeteria and kitchen (it was a surprise when I saw that one!), the lift and the
secret areas 
. Armoury still needs a little work, though; it's a little lame!
I would also think about removing the passage from the factory direct to the Raisin's Cave; it just seems way too much of a short cut to me. I'd take out that ladded altogether (though remember to put a smily, yellow, mudokon face in the secret area, like all the AE secret passages!)
My main thought now is for making the door at the front of the lobby lead somewhere. I was thinking of a courtyard of somesort and drew a map...
Really it depends what space there is. The factory would just be the outside wall, covering two stories.
Some trees could be deforested from the very west side of the wilderness to fit in the path shown there; it doesn't have to particularly line up with the other factory exits
