A big thanks for help, but... I didn't understand any of those things. Would you mind explaining in a better way?
Admittedly the link I gave you lacks visual examples.
Since animation is visual it doesn't always help to read about it in words.
I searched around for a video and this is the best thing that I could find:
http://www.youtube.com/watch?v=xqGL1ZLk3n8It's straight forward, short, and isolates each example without other distractions.
Unfortunately even though the animations are nice they are still lacking in teaching the technical skills to achieve each principle.
They only show you.
They do not show you how.
The description states "Designed as a memory aid", so it assumes that you already know what each one means.
The 12 principles themselves are not ALL there is to animation.
They are just a good place to start.
Many more tricks and techniques exist.
I can't seem to find any information about them on the internet.
But of course better material may be out there and I am just not finding it.
Search around and see what you can dig up.
You will find TONS of examples.
It's not that I think they are bad quality.
Although some of them are misleading or completely wrong.
I have just been unable to find any sources that are similar to the way that I was taught animation.
If you are REALLY REALLY interested I can cover maybe 1 topic a week (or less depending on how much work I have).
There's just no way I can explain it all in 1 post.
However if you are more interested in just small pointers for this specific animation that's cool.
But it may be difficult to apply without a good understanding and practice of the fundamentals.
Also Phlakes and rikfuzz both make solid points.
Keep their advice in mind as you work.