On average, most album designs have roughly 3 to 4 images per spread. This varies from design to design, as some spreads will only have 1 picture (as a gorgeous full spread) and others will pack in a ton, usually in the detail and dancing spreads. That being said, you can fit about 30-35 images in a 10 spread book.
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.