You are very photogenic! I am just amazed at the quality of the pictures you're posting (and a little envious, I have to admit :S). I don't see loneliness in this though. It's hard to pinpoint but I would say fragility is what transpires for me.
That's just beautiful and emotive. Terrifically lit, too. :) I usually don't get all "guy ogling the women" in my comments, but I have to say that a shot like this is going to make lots of guys want to help you through your loneliness (some women, too, probably!).
The wall on the left feels a little extraneous. Didja try it with the left wall cropped out, so your face is closer to the left edge? Just holding my hand up, I like that better - your dim, blurred feet in the distance visually balance your bright, clear face.
Jojo, this is a fantastic shot, you really evoke sadness in it, i feel it! I love how your side challenge is going so far, you've put up some awesome stuff! Woot!
Lovely relaxed shot. You don't look lonely in this but there is a certain intimacy in your expression...a kind of questionning. The detail is fantastic but the light on your face feels a touch too harsh.