Sponge holders, mountain design

The holder on the left was done all in white clay and slip. The mountain design was washed with iron oxide and received only one coat of the glaze I used on the rest of the piece. The holder on the right has mountains painted on in a Hawaiian Red slip, and otherwise received the same glaze and treatment. I like them both. I was hoping to find an alternative to the iron oxide wash, which can be a mess.