Love these types
I would suggest some subtle backround detail and or props to go with your beutiful design here, These B/W versions are kind of nifty with all sorts of visual apeal to them even with no color they are pretty amazing, they bring a sense of detail before the color is added, but color should be added even if just a little so keep making these drawing designs I enjoy them.
~~THINGS TO IMPROVE ON~~
I would suggest some subtle backround detail and or props to go with your beutiful design here
~X~