I need five animated GIFs to highlight features of a platform

I need five animated GIFs creating to highlight and explain simply the key features of a new web platform.

I have created very crude storyboards for each animation and would like each put together using a colour palette which complements a new website design (which I will send over).

Each gif should be no more than 400x180 pixels in size, and should have as small a file size as possible.

I'd prefer to go through an iterative creation process where ideas are put forward before the actual work to create the animation is done, just to make sure we're on the right track.

With reference to the question added by PeoplePerHour, listing a few past projects. Please don't just add your portfolio URL or your website. If you can list specific projects that would be a great help.