Izzy sent me this note:
I bought the 24 set of Inktense water colors from a seller on Ebay. I paid $15 plus $4 for shipping. Since then, I have had the chance to go to a Hobby Lobby and found they had very little selection of Derwent pencils and they were more expensive. A 24 tin of the Inktense colors was not even available but reg. water colors was around $30+. I just received my set and eager to try them. Hope that helps you. Thank you so much for your tutorial.