Check out the line of AK Interactive diorama terrains. They have all sorts of ground...light mud, dark mud, dry, many more. Also water effects. I just did a Uboat diorama of a boat at sea. I used the clear water effect mixed with micro snow to make white caps. This stuff is really easy to use. Open up and apply. You can apply your tress, grass, leaves right over it. I did not even paint the dirt. I chose the terrain to match the painting, open the can and spread it on. And a little goes a long way! It lasts. Just check modeling stores...I use Sprue Brothers online store a lot. Or just google AK Interactive terrain. They have a ton of selections. You can PM me if you have any questions. You will like this stuff. BTW...I used modeling clay as the base for my water. Let it dry over night. Then you can add the AK as you desire. I use air drying soft modeling clay. I get it at hobbylobby.