As a character artist? Probably not yet. It looks like you've generally got the technical understanding of the software/workflow for creating a character, but you need to develop some of your "artistic" fundamentals further, proportions and anatomy most notably. If that's something you want to pursue, I'd recommend getting away from characters covered entirely in body armour, baggy clothing, helmets, gloves and pouches for bit, and posting some figure studies some where that you can get a feedback/revision loop.

Your props and vehicles look like they might be able to get you in the door somewhere. There's a few instances of wonky geometry/flow/density in some ares of the wireframes, but nothing that can't be cleaned up/corrected easily, and everything else about them seems pretty good.

Core i7 950@3.02GHz | 12GB Corsair Dominator Ram@1600mHz | 2GB Geforce GTX 660

Lightwave | Blender | Marmoset | GIMP | Krita