I've been trying to draw a jungle environment for a while now and haven't had much success, this is most likely down to the fact that I haven't used any reference pictures. One might think it is easy to draw a jungle, but in fact it really isn't. I quit the solo tactics and used a picture from google images to get a feel for the textures of plants, particularly the leaves and the way that the plants are arranged.
These are the results;
The second picture is a more serious attempt, again I am proud of the palm leaf texture, the other bushy textures were a bit slap-dash. Because everything in the jungle is green I have found that separating trees and bushs into "groups" makes it easier to distinguish them, better lighting would also help.