Ander's Mind Paint

You focus your mind on a painting you would like to paint. Describe every single aspect of the painting to the spell. Roll a d20 and add your charisma modifier. After an hour of describing the painting to the spell, a large, red gemstone appears in front of you. If you shine light through the gemstone in a darkened room, the picture appears on the wall. *The picture appears on the wall as a square, each side 20ft long*. Your charisma roll determines the quality of the picture. If the roll was above 15, any creature that sees the picture may feel inclined to give you 10gp, Above 18, 15gp, and if you got a 20 or above, 40gp.