Excellent choice in bikinis; I'm a big Nintendo fan, so that design gets some bonus points from me. She's a very attractive lady too; your style is beautiful and very realistic. I really like her expression, it seems to say that she doesn't believe there's anyone who can beat her gaming prowess.
I think it would look even better if the saturation on the jeans was brought down a bit. They are so blue they make her look washed out. It also makes the texture used in the jeans less noticable. So if you desaturated just the jeans a bit, I think it would look even better.
Aside from that, I am in envy of your skin-shading abilities, and anatomy. She looks gorgeous! I adore her top!