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I spent four hours on this life painting of Aine and then I left it for fear of losing any freshness that there was in the brushwork.
I'm very lucky to attend an all day drawing session, but the diminishing natural light in these winter afternoons means that the subject looks very different than they did in the morning session.
I am always tempted to keep reworking the tones and shadows as the daylight fades and the artificial light becomes dominant.
All in all I think it's best to start a new piece if possible.
So I did the study of our other model, Rubén, holding a broomstick in two hours under over head spotlights. And, although I usually prefer natural light, I found this effect quite striking.
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Knowing when to leave a painting or an illustration alone is a constant difficulty. The great thing about the life room is that it imposes tight time constraints on you, and what any good artist learns from that will hopefully inform the other types of work they do.