I'll add some constructive criticism here.
To be blunt, your levels are very basic and bare, and lack detail. They look like you've made them in under 10 minutes, and they suggest you are pretty unfamiliar with the GraalEditor. I suggest you try to get to grips with the editor before posting more pictures of levels on the forums, and look at other levels already on servers to see how they are constructed and how you could better yours using methods present in other levels.
The most noticeable feature your levels are missing is the detailing of the grass tiles. Most levels use a patchwork quilt sort of style to detail their grass, which means they just pile on most, if not all, of the grass tiles that are available to them.
Also, your levels lack a constrast in colors. They just look green, brown and red. Try adding, again, a variety of tiles in order to make your level look more appealing.
I'll give you an example of a level I made a while ago to give you an idea of how grass should look: