WARNING : The following is my personal opinion. Don't take it too personally. My opinion may be far from the majority of people here think.
Firstly. For levels it's not bad. You've reached a skill-level that would make you have a good chance for a LAT job on some exsisting servers.
With that said

I think people spend too much time trying to make every level look like a peice of art and not enough time thinking about the functionality of the level.
Here's an idea: Make the levels fun. Don't just make one level, make your world, with as little detail as possible, and play it. Is it fun to walk through? Or is it a maze filled with garbage that you need to walk arround, no clear path, and too much detail for such an insignificant level?
Think you're good enough to make simple, fun levels, and a lot of them? Just remember to check them and make sure you didn't do anything stupid like make a clif that a player can jump off of and get himself stuck and have to use "unstickme" I think everyone here will agree that in not only sucks when this happens, it pisses off players and makes the game less fun.
Spend more time thinking up clever quests, jobs, things-to-do, etc. and work on actually implimenting them.
If you make a simple, clean looking, world that isn't filled with bugs or things that annoy, distract, and irritate normal (non-level-making-eleetists) players and can fill it with fun things to do it will be more enjoyed and more popular that a world filled with a lot of eye candy, a lot of lag, a lot of confusion, and a lack of actual things to do.
A lot of you are probly thinking "yeah, making simple clean levels is a joke, anyone can do that." but if you tried I bet I could find things wrong with even those levels. It's not the amount of work that goes into a level that makes it great, but the amount of thought. Why do you think we have so many boring playerworlds filled with over-detailed levels and nothing to do that all look the same?
End of rant
