Hi! I have noticed that it is possible to vote for your own photos, but honestly I don’t think it does that much. I guess it would contribute to your total votes, but you’d still need at least another 14 votes in the first 24 hours to get an “audience pick” badge in the new photos section.
And getting into the style gallery is another thing entirely as it depends on a whole number of factors such as page views, favourites, comments, not just the number of votes!
So it is possible for you to vote on your own photos once a day, and that would bring up the number of chic votes you have for each photo, but it wouldn’t help you get into the style gallery as the votes only help you to get in if they are in the first 24 hours after being uploaded.
Hope that makes sense and let me know if you need more info!