LEGO Half-Life 2 Organic Enemies

Some of the organic enemies from Half-Life 2 made out of LEGO.
From left to right:
Headcrab zombie, poison headcrab zombie, antlion guard, antlion soldier.
All but the poison zombie were originally on my MOCPages account here: [link]
If you look at that, you can see that my antlion guard has drastically improved. As for the antlion soldier, I recently got a set with those 2x3 angle plates in green, so I changed the color. It would still look WAY better if I got some lime green angle plates, but I don't, so this is the best I can do.
Also, with the normal zombie, I gave it some long claws since LEGO released those new claw parts (I used the ones from the set with Wolverine).
Both the headcrabs are made with bake-able clay. The normal one I made a long time ago, and the poison one hasn't been baked yet because my house is being remodeled and we got rid of our old oven. So now it sits in my room with a small LEGO dome over it so it doesn't get dusty until we get a new oven.