I did this in about 30 minutes in the late afternoon..........I find that using an old, paint-encrusted panel relieves my anxiety about "wasting paint." I have gotten a lot better about this neurotic mental tendency by playing games like this with myself! The glare on the painting illustrates just how much old paint is underneath. I was feeling trapped in the studio the other day, it was beautiful but beginning to be late afternoon and I simply had to get out; so I did. Not perfect but doing this made me totally happy.