basically the way you should think about it, is to make it as short as you can while still getting every different good trick in its entirety into the edit.
if you ever go on to make short films or documentary style films its a great thing to remember too. keep your videos as short as you can while still keeping the important bits in. (important bits vary depending on intended audience. you're the one that will learn to judge that)
hey JWoods, whats the difference between a rodeo and a flatspin?
Just my personal preference but I am not a big fan of a full black and white, I would of faded back to color around 50 seconds where you had the natural wildlife shots, you could still have the shot of the birds but just in color. I think you know what im talking about.