You'd be hard-pressed to find a genre I didn't like, and instrumental rock is no exception. :)
I think that sounds great! Of course it isn't perfect, but I would definitely listen to it (and others like it) without coercion. :D
I'm checking out the rest you have on Soundcloud and am enjoying them equally if not more.
If you want more people to hear your music, for starters do what I do on Flickr: comment on/like other people's work on SoundCloud and follow the ones you really like, in hopes that they will reciprocate. Beyond that, I have no advice, but that's a good way to start.
Keep up the good work. I wouldn't mind hearing more.
Also, Is there a reason there's an option to download some of your covers, but not all of them?