Check this out.. So I was on page 10 then Google bumped to me to page 2 I was there for about a week and then Google threw me back to page 8-9 depending on the time of day. Fortunatly.. I Did an allinanchor search and Im on page 4 for my keywords. I think im going to target some diffrent keywords for a while. Im scared,,
I am not sure if that is sandboxed or not. Google has a way of asjusting rankings but I am not sure with you. Try doing link exchanging.
I think this is not the sandbox ... and basically you're doing fine, just continue with link-building and SEO optimization.