I was browsing My Little Brony and came across a cute drawing of Applejack laying in the grass on a sunny day and that image randomly linked to another artist's Tumblr blog called Cork Dork. Their character is almost the spitting image of mine (colors, mane style, and cutie mark) including their affinity for grapes and wine so now I don't think I can continue with my pony OC. The only difference is their pony is a female earth pony. I get that in this large fandom it's probably pretty hard to develop a new OC that isn't going to be similar to another person's creation but this is really too close. If you want to check it out here's the link: askcorkdork.tumblr.com/
If the artist that draws cork dork notices my character, I apologize if it seems like I was copying your idea, I had no knowledge of your OC and did multiple google searches for grape themed pony OCs before deciding on mine but I didn't come across yours. I realize it's because the name you chose doesn't have grape in it so it wouldn't pull up on a search.