Well, I think you've been getting a lot of usefull feedback already, but i still wanna put this on the table: Your ID is the first impression for possible new watchers or friends, what kind audience do you wish to attract with this picture~? I personally wouldn't be shocked off my chair from this pic, it isn't showing anything inappropriate. But there are creeps everywhere on the internet, and maybe those freaks might push or pester for more. But, in the end, it is your choice, and i don't think your current watchers and friends will overreact with unwatching or something. If you are pleased with it, keep it!
I don't really think that this Id shows your photographer skills nor reflects your style. For me it looks a bit trashy :C As you said in a previous comment, it's just showing your body (which I think is gorgeous), but there are more beautiful ways to do that c:
I browsed your gallery and came to the following conclusion : when it comes to your IDs, they're similar in their sensuality, showing nicely your cleavage ( or maybe you didn't use them as IDs, but it were at least as it seemed to be told in the comments ). So, why should you not take away your deviation ? First, you're free to express yourself in every way you judge right. You're talented enough to take great shots which tell a story and please the eyes. Second, I guess you felt it would be a nice picture to be put as your ID, so you're not to change your mind now. You were right in the first time, it really has its place in your gallery.
Now, I will comment on your deviation so you will understand why I think this shot deserves it.