This was a lesson I saw quite a few years ago in Art & Activities magazine entitled "Give Me Liberty" by Debra Sweeny. I do it with Grade 5 students. I sart by showing a video and giving some history and background about the Statue of Liberty (a gift to the USA from France!)
Students practice drawing her portrait (not easy!) and then start their good copy. The lesson uses newspaer, but I don't know about you, but it's so hard to get newspaper donated to my art room these days. So I use plain paper with text printed on it which I photocopy.
Students draw the portrait, outline it in Sharpie, then paint over it with a wash of turquoise watercolour (to mimic the patina).
While those dry, paint a background sheet however you like. Once dry, cut out the portrait and glue it onto your painted background sheet.
Some finished Grade 5 paintings: