Unfortunately the stuff you posted doesn't really show off much in the way of texturing for modern games, as you mentioned yourself. In particular I can't see anything that shows the use of normal and specular maps. Are you familiar/comfortable with creating normal, specular, and high res textures? Do you have any work that shows this?
With only the stuff you've shown so far, I would vote for you to come onto the team as a tester, but I don't think you've demonstrated enough modern texturing work to be a texture artist for us. The other concern is that developers who can only do texture work and not the modeling side typically work on environment textures, and your portfolio doesn't contain any environment work.
If you have some more work that addresses these concerns, please let us know.
Definitely keep practicing though, and I would recommend working on assets for more modern games as well. That way you'll get the practice using more modern techniques, and have more relevant work to show.
