Those are really good. I really liked number 2
While I'm not a big fan of The Clash, I do know this song, and it seems to be a faithful cover. The little devil on my shoulder would try to take a completely different angle on it, though. I can't hurt to experiment with a multitude of styles, and I dare say that the late Joe Strummer would consider something which doesn't follow the template to be more punk than punk. I suppose what I'm trying to get at is that you have constructed something from building blocks; now smash what you have created and see what comes of it.
OH ALSO! You might want to upload some of your stuff to Soundcloud. I thought their conditions were restrictive at first, but now they've changed, and two hours of music is more than enough to give people an impression of your work.