For your web project decided to make a series of animated logos. Just like does google
for different events.
The task is essentially elementary (logos for 4 seasons):
a simple picture that displays the site logo and simple cyclic animation (such as wind, snowdrifts and snow, moving grass and the Bouncing bird, daisies and flying butterfly; falling yellow leaves)
Maybe I confuse warm with soft. But I don't even know in what direction to dig.
I would be very grateful for the links, recommendations on the subject or some other way to share the experience.
PS.: animated gifs and flash are not suitable.