Sometimes what's the client needs is a simple thing. So here in this case I had no much time nor much place to play with different ideas but I'm still kind of happy with the final result. Sometimes I am just happy because the client is satisfied which is obviously the priority for anyone who is giving a service. In this case I was happy because I could play very quickly with simple things to offer different solutions - here they are:
So yeh - basic elements and basic animation techniques but sometimes it's enough.
And here is the final video - yep I also made the rest not just the animation:
If you like it maybe it worth to visit the community's WEBSITE.