Create animated logo for a website - repost 2

We need an animated part of a logo for a website, which consists of three shapes...They should look like three undefined constantly changing random forms, which sometimes seems to "twining around the other ones", moving forming, pulsing - billow in an "organic" way, but also smooth and slowly. Furthermore, they should always overlap at least at one point and be recognizable as a complex belonging together. The color of each shape has to be a gradient, not just a single color (perhaps changing the color..but that is still open) and each shape should also be a little transparent to make the other shapes visible. Also these shapes should respond to mouse movements and actions (click + drag ). Something like you see on this page: [login to view URL] ... but a little bit more intensive - more movement, more color, etc. Some examples of how it could looks like you can find in the attached file (...just some sketches..).. however, it may also look completely different .. We had someone who started with this project, but unfortunately he could not finish it. So we need now someone who can adapt, improve and finish the previous solution (has to be familiar with HTML Canvas) or simply start from scratch. The result should be delivered it in a way we can easily implement on a website. For more information or questions just send me an email. I will show you the previous solutions and an image of where the logo will be placed on the website.