Here is a resource you can use to have your students analyze their own drawing. This is great writing activity to fill a 15-20 time slot in your day. It is also great to leave for a substitute. Any teacher can use it! It isn't just for art teachers. Another way this could be used is to keep students engaged in an academic task after an assessment or on the days before a holiday/break.
There is space for the student to draw and then questions for them to answer about their drawing. Students must use art vocabulary in this activity, particularly the vocabulary of line and color.
You might also like this art vocabulary reference sheet with student task sheet.