and......

 I am looking forward to seeing you all, and please bring your own subject matter to the session.

Here is a photo of a metal ring showing interesting corrosion, which I found at the beach, over a vine stem. So the juxtaposition of one upon the other gives you focus for a drawing or painting.

And these are snowdrops which, despite being pulled out of the ground, are growing. Another idea is to collect something like these, and draw them every week or every few days, to give information about the way they grow. Your drawing could be several drawings overlaid over each other, or presented as a succession, or in a random way. Remember there are no rules.

If you watch David Attenborough's Green Planet on I Player you can slow down the speeded up time lapse images and use the wonderful photography for your own drawings.