My friend, if you are spending so much money on art supplies, do yourself a favor and go out and buy some unlined paper. It's hard to take a piece of artwork seriously when it looks like you tore it out of your Geometry class notebook.
Otherwise, they both look good. The first one in particular is quite striking, though I wish it were a bit more refined. The third looks very good, but it seems that it was drawn larger than you were used to, and, as such, suffers from some problems with proportion. | 
