My Gallery URL to post on FB

Could someone please tell me what is the correct format for my gallery URL so that I can post it on my FB page?
Thank you

Just copy and paste from your browser? Like so: The preview onFacebook then shows your profile picture.

Does anyone know how to post this link, but NOT include your profile photo (in the Facebook preview picture) – I realize there is a box you can click in the bio, but that removes it from your artist statement.

I know how to post a particular painting, but then they would have to click through multiple links to get to the gallery. Even using the most recent painting (like the artist list has) would work. Ideas?