To be honest, I think it could use a little work. The idea is fairly solid, but it looks like you've forgotten to give him a tail. Lizardmen don't really wear clothes, as they're less humanoid than Orcs, so the body doesn't really fit. It's a little too big either way and makes the head look puny. One last thing that I have a bit of a problem with is the weapons. Orcs should have Orc weapons and Lizardmen should have Lizardmen weapons.
I kinda like this model, some close ups with better lighting would help, and a tail would also be great. I think he looks like an orc slayer or something, though i would like to see some reverse joint legs. Neat concept though.