What did you use to draw them.
Great pictures, you should be an artist. Or are you?
For the batman one i used a really thin biro so it took me hours to do it, but for the link one I used a thick (not felt tip) pen, its like a felt tip but its for dry inking.
I actually don't want to be an artist, but I would love to be an architect but they don't get good pay so artist would be my second choice.