Quick view on Pitivi video editor
To be honest I think Kdenlive at the moment does whatever Pitivi does, and it does it better and faster. So I cannot recommend Pitivi for editing your videos really, but anyway here is how it looks!
What I reckon, is to learn using Blender! I do a simple mask here, and neither Kdenlive or Pitivi cannot do masking, which is pretty much essential for every video effect.
Both Pitivi and Kdenlive are good enough to add some footage in a sequence with some effects and basic transitions between. Thats pretty much all they can do. They are pretty basic video editors, not video compositors!
Btw video time is stretched to 80%
Music
Viola - Popsicle Summer