It can be a collection of photographs taken with a certain type of camera, in one geographic area, of one person or a group of people, only black & white or sepia photos, a special event, etc. Many photographers use portfolios to show their best work when looking for jobs in the photography industry.
What happens after 10k followers on Instagram?
Once you have 10k followers, Instagram will make it easier for you to get people to your website via Stories with the swipe up to link feature. Swipe up is the only way to get a direct link from your Instagram to your other web properties. And, it’s available in STORIES, if you have 10k followers.