Your composition looks solid - when I find my gaze leaving the work, it has enough entrance points to draw me back in. I really enjoy that I can lose myself if this piece. What I mean is, I forget that it is a drawing or that you used ink or tea or what have you, and I become interested in what else your forms can tell me. I think that a part of this is your choice in where and how you used the splotches and the interaction of those splotches with the line work.
I get a very organic feel from this. That is, I see plants and feathers and such (not literally, but the lines and shapes make me think so), but I also get an impression of something map like. I like that interplay - it makes me wonder about the relationship between these organic forms and what a map is/is used for.