Generally I find posts stating "Admin <this> or Admin <that>" quite annoying on any page/media, I just can't see the point of people referring to themselves in 3rd person, I feel like they are nincompoops or some self-entitled arse. I never do that on my own page, I just word it differently so that it doesn't require to refer to myself as "Admin" or whatever.
A way to get more attention is to feature motovlog how-to/tips, interesting motovlogs from members (does not necessarily be a top-poster) or non-members (you can tag the non-member about the feature), brush up that page banner and profile logo.
People that are not in the forum will have no clue what dafuq is "Sunny Bear" and probably won't bother to find out, so you want to keep your posts to cater to the general public, or at least mention it's a contest or something so people have some sort of an idea.
I am by no means a social media guru, just sharing my point of view on this. No offense to anyone or any Admin.