|This is Kari Ann, greetings from the Critique Club:
composition: the women is placed very well in the frame, she sits along a great intersection in the Rule of Thirds, taking my eyes right to her upon opening. Also, the beach adds a good leading line.
color: As stated before, the blues are a little overpowering. Maybe if she were wearing another color besides the same blue of her outfit, she would have popped out more, and the blues could have been laid off a bit.
contrast: good contrast overall, everything it set off nicely.
focus: nice focus on the subject, can plainly tell the women is the main focus.
depth of field: A deeper depth of field should have been used. In this case, the sand is out of focus, and thats the main theme of the challenge.
lighting: I like the lighting. Perhaps next time you can wait a little longer till sunset or near sunset, that way the blues will be a broader range, and the lighting will be more diversified, not so flat.
other: for me, this is an average photo yearning to be above average. I think with a few little tweaks in timing, clothing, and aperture could have really set this out from the pack. So with that being said, i hope you'll take the advice of others and keep up the shooting! You've got the eyes for sure to see photographic potential. i hope this critique helped you. if you have any other questions, feel free to PM me.