A few months vs 11 minutes

While reading through the Avatar the Last Airbender (the art of the animated series), something really caught my eye. People talk about loving the work, and how much effort goes into a piece of art, but when you're actually given time frames on how long things took or how short, it really hits home. I was shocked at 3months for 11 minutes and I couldn't figure out if that seemed really long, or really short. Three months in most people's view is a significant period of time, but when it comes to creating something that you really love and want to be perfect it doesn't seem like nearly enough time.