Girls, would you consider me to be unattractive

I know I've asked this previously but recently, I've been thinking the girls I'm interested in, am I attractive enough to approach them? I just think they will find me unattractive, and I wonder if I'll ever find a girlfriend. I'm almost 19 by the way, please give me your honest opinions! The one when I'm in the red t-shirt is very recent http://www.flickr.com/photos/93996692@N07/

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