I've pinned some vines to my door. I used yarns of various kinds and hit them lightly with a heat gun to melt them a bit. I really looks like rough bark. I'm going to play around with the location of the vines for a while until I get something I am happy with. If you look closely, I've been playing around with leaves. I free motion-ed straight stitching in the shape of a leaf on some Kunin felt, then hit that with a heat gun. I shrunk the leaves and made them look bug-eaten and old.I'm also going to put some fuzzy yarn in the grouting in a few places to represent moss.
Let me know what you think.