Okay.. lets try to give a review.
Pic 1.
I support creativity, but your need to try and keep perspective, and make it not look like a giant tile error. Here is a couple of examples I have on hand:
http://img.photobucket.com/albums/v1...tecrastle1.png
http://img.photobucket.com/albums/v1...ati/messin.png
Pic 2, 3 & 4.
1. Look at perspective, again, does what you make.. make sense? If you were to walk into that room (as a person) how would it work? If you look at the tree tops, the north wall could make sense.. you are looking out a window, and looking at the tree tops. The south wall? Wont work. Here is a OLE (Online Level Editor) level I made with the N-Pulse housing system. Wouldnt work perfectly as a real level, but it shows perspective.
http://img.photobucket.com/albums/v1...i/2cd6cb50.png
2. All your rooms are very square shaped, and has no depth. You dont need a big inside, and just fill it in with floor tiles, because that is boring. Though you're arn't huge insides, they are still boring and lack depth. Mix up the shape, bring things into the room, try and make levels (depth) to it. here is a couple of examples of way to make shape, adding detailing, depth, and still being creative.
http://img.photobucket.com/albums/v1.../gaaaaraal.png
http://img.photobucket.com/albums/v1...gelus-spar.png
Pic 5.
I really have no idea whats going on in this level.. I'm not sure if it's meant to be a town, or a test level. If i'm honest, I dont like anything in this level. Take note from what I said about Pic 1, and if by chance it's a town.. here is a basic layout of a town picture I have.
http://img.photobucket.com/albums/v172/Ducati/levvv.png
Work on it, keep at it, and re-post your updates (IN THIS THREAD), and I will be happy to keep constructive criticism up.