I don't know what kind of custom drawing you are referring to.. the web can work with 2d and 3d drawing and animations just fine. For example, an entire first person 3d game built using WebGL - http://www.littleworkshop.fr/keepout.html.
Maybe you have looked already and it wasn't useful to you but on the Docker website it has some pretty good marketing to explain its usefulness: https://www.docker.com/whatisdocker
Why Use Docker: "How does this help you build better software? When your app is in Docker containers, you don’t have to worry about setting up and maintaining different environments or different tooling for each language. Focus on creating new features, fixing issues and shipping software."
Business Case: "...With Docker, you can easily take copies of your live environment and run on any new endpoint running Docker..."
I read this a few years ago in university, Carleton University Bachelor of Commerce Information Systems Concentration. One of my favorite course material readings that I 'had to read'. I would recommend it to anyone who works in the IT world and especially to any new CIOs out there.
Edit: especially to any new and old* CIOs out there.