Idk what is going in in here at this point.
To the OP, posting some selfies is not how you become a brand rep on a forum. We all see first hand that it does work on social media however, so grow a media following and tag in the companies you use/support there.
That last line is key, you can't appear like a physique for hire to whoever will give you stuff, you need to be a genuine fan or supporter of the company and build a rapport.
If you are after a forum position it is very different. You need to be knowledgeable to some degree on supplement science, be in good standing on the board (post count, respect of fellow members), and be active and helpful.
Companies here will create threads (usually) when recruiting.