Wow, it seems that everytime I pass by here, I got some new comments of praise. Thanks everyone! This really gets my spirits up to try and improve my skills even more, especially now that I haven't had any models to paint lately.
@Monkey's_Uncle: For blood, I got my little magical pot of paint: Tamiya Clear Red. It's slightly transparent, but still red, and coagulates (like real blood). By first splattering the colour at the areas I get a nice blood effect, then for a second layer I mix it with Badab Black to get a darker red, splattering on the areas of the other blood.