There's a fine art to creating a compelling a good demo reel if you want to sell your services as a cinematographer, director, producer, editor etc then you'll need to be on form with what you publish.
In this demo reel from Canadian outfit, Virtu Media they have certainly crammed it all in:
Time lapses..
Slow-motion...
Sunsets and sunrises...
Aerial shots...
Fly-by-wire shots...
Downhill, dirt-jump and freeride... even some enduro
Shenanigans...
Singing hipsters... errrr
Okay, so maybe it's a little over crammed, however the quality of the work is rather high, so just relax and enjoy!
Source: Virtu Media