It's maybe a bit early for saying a lot to that map, but I'll try anyways.
1) You should decide (and/or tell us) what the map will be used for (TDM, FFA, tourney, maybe some special mod?) as this will have major impact on item placement and the decision on whether the layout is ok or not.
2) on the item placement: see 1), then have a look at maps you like or read one of the guides (the one by wvw over at promode.org may come in handy) that are available and try something. get back here and ask again what we think about it.
3) rooms and corridors are a bit huge imo
4) layout seems to be a circle with an small extension (reminds me of a deformed "8".) Maybe too foreseeable and simple, thus boring.
There is no vertical action in there - this may be a matter of taste but I consider this rather boring too and I think many players will agree on this.
5) Don't think about stuff like windows atm, that's rather pointless.
6) On the textures: there's a set available at simland, I think it wa smade by sock but I'm not sure on that.
> egypt textures <
7) On the teleporter: though the map lacks connectivity, area 2 is definetly not the place to put a teleporter imo. You should rather place a strong item up there (like RA), making it a risk to take it because the room is a dead-end.
Hope this helps!
EDIT: And you should change the readme file you put into that pk3
now. It seems to be for another map, but I seriously considered deleting your map right after downloading it when I opened the readme and it said something about a
dm17-conversion. Others may disagree on that, but doing a dm17 conversion isn't much better than starting a nuclear war in my opinion.