[coreys]

Well, I don't think your overall technique is bad besides some few problem areas, but it seems your level needs a little better planning. For something like this you probably want a lot more open space with no real obstructions in the way, especially small blocking areas in the middle of the open area. You didn't do too bad with that minus a few things but it could go with some more open space.

I believe you're approaching level detail all wrong. Grass-on-grass tiles are very overused these days. They should only be used to signify a slightly elevated area or slightly denser grass, and done logically. Layering them and having them go into each other like that doesn't make much logical sense and looks ugly. Not to mention it forces many tile errors (making them go into paths does the same thing as well).

All the blocking detail should be kept off to the side, out of the main area where players will be walking. Patches of bushes would also look nice as well.

And lastly, your use of the N-Pulse tilesets tallgrass tiles is a little off. In the very top left you have the center tiles without any corners, which looks bad. And you're using little circles of the corner tiles together, when you should be using both of those together to make shapes and such, to form patches of tall grass.