I've been doing a lot of work recently that I can't show (which is always a downer) and a lot of other work cramming to finish off a major project which is eating in to my art time!
This is a concept image illustrating an area with such enormous vegetation that you can actually walk under the roots of larger trees. I always loved the look of "A Bugs life" when they turned mere blades of grass into glowing cathedral-like ceilings and the like; I've just made the foliage larger rather than the characters smaller.
Original res ~3k
Painted in Photoshop CS with a Wacom Tablet.