I am looking at Edgar Degas' soft pastels, writing this with a huge book of his works on my knees. He was experimenting with various techniques of using the soft pastels crayons to that extent that some of his works got destroyed in the process or were beyond repair when art museums got them for their collections. If you will be visiting Musee d'Orsay have a careful look at his work in soft pastel technique set up in the darkened section on the top floor. But my favourite work of his (oil on canvas), red La Coiffure, is in The National Gallery's in London collection - I am planning a visit this summer. 

I hope my works are doing well on the walls out there!