One thing is very important that you have to fully active on your account and upload content on a daily basis and tag your friends and tell them for sharing your post. One thing that is very important you have to use hashtags for your posts and relevant to your post and you can make your popular hashtags for promoting your content.
I found a solution of how to improve view on Instagram. you should use Instagram hashtag for promoting your content. i found some website where you can find many hashtags according to your content one of them i find very accurate.