Firsty.. it aint bloddy hardto post images in correct tags.
1st map.
Ok nice map.. simple layout looks ok. However i think the floor tiles... and object choices inside the map dont work with the style of walls. Purely because ZT Just doesnt suit.... whatever these new objects are for. I think it looks tacky and rubbish.
Secondly, the little section off to the side.. make it a second map. No need for it, unless you can only reach it by RT or something as a secret area.
2nd map
Again... idea is good.. poorly executed. The tiles and objects you using just dont work... also the lava bit? Same again.. just doesnt float my boat.
3rd map
This maps... ok, You have stuck to objects made for those walls.. however still tiles... they dont work. I know there isnt a official tile for this.. or a map to work off but still. Also the walls where theyjsut end? CRAP. Sorry you cant decsribe it any other way.
4th map
This is an ok map.. just too empty again its the objects avaliable at fault here..
To be honest.. work on other new tiles.. ones that been out a couple of months.. as im sure this isnt last patch updating these. there is a space for things to be added. Also work on skills and techniques, your get better. But if it doesnt work.. dont do it, but still take chances =D