if you feel like you're leaning left, you may be too far right. try moving your torso closer to the zipper till you are level across the shoulders. your left shoulder will probably be a few inches from the zipper.
i also think it looks like the foot end looks mighty low. most folks like the foot end level or slightly higher than the head end once the hammock is weighted. that last part is key, because sometimes the foot end can be higher when empty and then lower once weighted, like if the foo endt was alot farther from it's tree, it would drop more whe you get in.
also, if you haven't already, check out the blackbird setup video in the setup section of my new website.