Hi Natalia,
I'd like to begin by saying that you have very good work! Congratulations!
I saw the image you posted on Deviant and I would have some comments on it for you. Please note that in glamour retouching, your particular taste or the art director's/client's taste is what really matters. It is a very personal kind of work. These are only my opinions:
The eye shot: I think it lacked a bit more transparency and colour in the cornea. And you could also have retouched the big white spot on its top left corner, leaving it just as a slight reflex of the enviroment.
The Breast with dress shot: It lacked a bit of detail on the fabric of the dress, and the shadows were not so well drawn. overal, the shot is not very well lightened, it is flat (with is a problem inherent to the shot itself, not your retouching work) the skin tone is going toward a greenish colour cast, wich can be a problem when printing it.
The breast profile shot: you could work a little more on volume (light and shadow) to enhance the anatomic details. the overal colour cast is also heading toward a greenish tone. I'd ad a bit more of magenta to better balance it.
I actually did some of the sugestions on a file wich I can e-mail to you if you wish.
Once again, you have very good work!!
Cheers,
George Rutherford
www.seagullsfly.com