Well, I definitely like all of your photographs - but this one REALLY stands out! I love the expression on your face. I find it very very complex. It is so friendly, cheerful, welcoming, playful, curious, profund, open-minded, and even a bit flirty and frisky - not obviously "offensive" and explicit, but more in a subtile way, like it's just a normal, natural part of your liveliness and curiousity. And this is what makes this photograph a perfect portrait i.m.h.o. Alltogether it looks really natural - aside from the fact that you really are such an outstanding, beautifuly eye candy. I really love your sweet freckles and the intense hair color.
I can spend hours looking at this photo and still have the feeling that there's still somthing behind all that which i cannot name, which is somehow intangible. Well, i think, that sounds a little bit crazy, but... I hope you got the point.
As i've said in another comment: you look excactly like I imagine a main protagonist of my fantasy novel cycle. It feels really good to have a "real" face for her in mind now. This makes her much more "real" for me - and this eases the writing process a lot!