Hi, while the composition and the Wraith look very good (the 7 is for those elements), the tree does destroy your diorama, as it does not look like a dead tree at all. I assume you sused some wire and wrappings of tissue and then sand? To get a much more convincin dead tree, I recoomd to get some cable, slice it open and use the copper wire inside to form a nice and thin branch structure. Then apply sand for the bark or preferably some kind of putty or woodfiller. Paint it and voila, you have a dead tree which looks much more convincing and has a natural branch structure.
Tutorials for such copper wire trees can be found on the interent, just google it.