Maybe it's the stuff you're posting. Is it your best work? Is it only your photography or are you slipping in some vacation pics or unrelated content? I recently watched a Scott Kelby session on this very thing. People that follow you for photography content will be turned off by off-topic posts and will likely unfollow you. Have a look back at your posts and see if you can find off-topic posts and then remove them. Then do some research on the very best hashtags to use.
Maybe it's the stuff you're posting. Is it your best work? Is it only your photography or are you slipping in some vacation pics or unrelated content? I recently watched a Scott Kelby session on this very thing. People that follow you for photography content will be turned off by off-topic posts and will likely unfollow you. Have a look back at your posts and see if you can find off-topic posts and then remove them. Then do some research on the very best hashtags to use.