I'm just learning to draw in retirement and there are so many subjects in the natural world that I feel will be inspiring and challenging as a beginner. I loved the journals that captured the change of seasons and provide a diary of things you see each day or month. Combining drawing with poetry appeals to me, also drawing and discovering the names of birds, trees, insects that you may not have noticed in the past. I like the meditative quality of drawing, so I think just being able to slow down and observe closely will be a very comfortable way to spend my time.