Based on your photos, you pass with flying colors. You looks cute and 'girly'. What you can try is,
a) get some perfume or flowery/fruity hand creams. Also feminine smelling shampoo helps too. I find many people (men especially) relate the smell of a person to their gender. If you smell like aftershave and colon, you'll be seen as male. If you smell like flowers and shampoo, people more easily associate out with being female. I made the mistake one day of putting on some hand cream and ended up being hugged and in my opinion, harassed by a male friend of mine, ugh.
b) The voice. Nothing makes someone stop and look twice then the wrong voice coming out of someone.For me, I find it's the quickest way to know if the guy standing next to me is trans. Work on having a feminine voice and use it =) With how you look, a feminine voice will complete your overall look, I would think.
c) Act female. Cross your legs every now and then when your sitting. Don't burp, Just try to avoid overly manly type actions. This helps people go "Look at that cute girl" as opposed to "I'm confused..." lol
Thats my two cents =) Good luck, you look beautiful!