UI Polishing - Have you ever noticed Blizzard games do this?

How to design a great UI for your game? Let's learn form some of the best UI designers out there!
In this video I analyzed the user interface of my favorite Blizzard games for you.
Which backgrounds do they use?
How is the UI animated?
The amount of polishing put into the main menus of these games is absolutely astonishing. There are micro animations, particles, camera transitions and changing backgrounds. You don't notice all of this directly, but they still improve the user experience a lot!
The UI designers also made sure you always know where you need to go next. You never get lost in the user interface, because it's quite easy to navigate.
As a game designer I find it absolutely fascinating how they handle all of these little details.
If you want to design a UI for the game you're making, check this out. I bet you'll find some cool tips and tricks here, little nuggets you can use for you own game dev projects.
Do you know any games with an awesome UI? Let me know in the comments and enjoy the video.