What I like about your series (at least those that are most popular) is that they're carried through. I mean, look at the hair and make up, the light, composition, studio/location and models. It's all carefully thought over. Colors are delibertely used over again in other objects, which makes it very good in whole. Take this photo for an example; yellow flower, yellow make up, yellow strings in the hair. It's proffesional
. And that's why they stand out from other "not so proffesional" series and photos.
What I like about this photo in particular is her pose. It's funny, kind of cute, a little childish and playful. Her eyes sparkles with joy and happiness. And it has this playful and childish express too. Great sharpness and lighting. And the background is perfect, and set the bright and happy mood the photo already got. There's a little dust and noise in the dark areas on the right which could be removed, but it really doesn't matter, cause the rest of the photo is fantastic.