I think the last one is my favorite from you! It's pretty goof for a first stab at watercolor. All my first attempts had zero contrast and were really blurry. I think if you redid this in watercolor, using some mask would help. Or, if watercolor wasn't your thing, I think marker would work well, since this is a crisp, linear piece. I think the figure looks nice, but his thighs could be longer.
I think that's actually just a general critique of mine. A lot of your characters look a little doll-like because their legs work on the short side. If I gathered correctly, your characters are usually from the Salem story, right? In that case, the short-leg style might actually work, since it reminds me a little of the little dolls the Amish make (even though Puritans aren't Amish and the Amish dolls don't have faces—it's a complex analogy!).
Despite that, I like how you recognized your problems in the first pencil portrait and didn't make the same mistake in the bomb piece! I think the eyes in that on are a little too big, ut they look much much better there than in the first piece.
As for the lion one, I think the general anatomy of the lion could use work. Did you use a reference? I think that might help out with the legs. Unfortunately, I can't help specifically, because I'm not really familiar with lion legs! D: