Images are excellent. They allow your followers to see the product, see the development and to see what goes on behind the scenes. However, images can only go so far; just like words they are limited in that they do not move, nor do they provide sound.
Although images are a step up from simply having lines of text explaining things, the addition of video, such as videos to your Instagram account is something that you should consider integrating to your business account as well. It gives your followers yet one more way to see what is going on behind the scenes, what product lines you are going to come up with next and other fun snippets that you choose to share through your account.
Just like Twitter introduced Vine videos, Instagram has come up with its own video format, allowing you to share short video clips just as you would share images on your account.