I just saw their website and contest rules. You need to have their products first before you can enter the contest.... They should have made it available for anyone and not just their customers, this will expand their visibility and hits. Oh well.. I sure hope Stoli wins the grand prize!! Go Stoli!!!
It looks great. I like both version. The B/W is great. I like it but maybe a bit more contrast so her website and collar can stand out more... it might increase the chance of winning.
I have made a revision of the b/w one, if you would like to see, let me know. I do not wish to post it because some people do not like their photos to be altered.
I tried a couple subtle work ups on your photo. I did save the Hi Res pictures, if you like them. However, I'm going to bed soon, so if you do, let me know and I can send them to you this evening. If you send me a PM with your email address, I can mail them to you. Anyway here they are. One is black and white and one is colour. Like I said the changes are subtle