[DustyPorViva]

Well I'll be pretty quick with this reply. First off, even though it may seem easier, don't just rotate your images to get the diagonal sprites. It never works, and looks sloppy. You're better off redrawing them, as painful as it sounds, but it'll pay off when you're done. Anyways, sprites just look terrible when they're actually used with that blurry outline. At least go over it and clean if up if you rotate.
Second, Infernix is right. You need to apply some texture to this. The wooden sword looks like rubber, or a piece of bread. You didn't define the pieces themselves, and wooden swords aren't just made of one solid piece of wood. Separate your wood and then give it a wooden detail, probably like a finish on a table would suffice. And this applies to both pieces, don't be so soft on your detailing, with such small pieces, contrast is defining, especially with these textures.
And for the warhammer. Metal is very defined by it's contrast, dark next to light, and so on, to show its shininess. It could probably do with some cloth grips added, for logic as well as to break up the over-all gray on the sprite. If you'd like an edit just shout for one. I used to know a great tutorial for pixeling metals, but I don't remember the link... not that I'd be able to post it.