Rather than quoting my reasons for disapproval, I'll tell you what could help make your levels more likely to be approved:
- Try not to use so many enemies in a small area. It is better (and sometimes more professional) to space them out and focus more on placement than quantity, because they can be harder to dodge or defeat if you place them in certain ways. Experimenting helps.
- When making your level's visuals (or the way it looks), try to make it look like something you could see in the real world. That is a good first step in improving graphics, because as a level designer you want the player's experience with the level's atmosphere to be as real as you can.
- Add variety to everything in your level. Use many different tiles & sprites. The same thing(s) over and over again gets boring.
- Avoid tile and item cutoff as much as you can. If you don't know what "cutoff" is, try this: This is supposed to be a bad level. :3: show
- Try to make as much of an effort as you can. Don't make levels just to finish them, have fun designing them! And also try to make sure that everything in your levels work properly.
- Check to make sure your level isn't too confusing. Have others (or yourself, if you can put yourself in another's shoes) test it and see if they can understand what has to be done through cues. CUES.
- Above all else, make sure your level is NOT impossible to complete. PLUS you should make sure there aren't any pits, dead ends, or traps that cannot be escaped.
- You could also try looking through this topic (it does seem a bit outdated, however): viewtopic.php?f=83&t=9
