We were doing picture description in one of my classes so here is a practice worksheet I made quickly. It took up all of a 45-minute class when I made them read their answers and discuss. It is a pretty rough design and you should be able to take it in different directions. It can be improved, but as it is I think it is enough for a decent lesson.

The PPT and worksheet are to be used in tandem. The warm-up is unrelated, but whatever you think will get your students thinking and writing is good. Pretty self-explanatory.