Speedpainting is how I warm up for longer projects and it's changed my approach to finished work in ways I didn't expect.

The core discipline of speedpainting: every brush stroke must read. If a stroke doesn't contribute to the value structure or color story in the first few seconds, it's wasted time. This forces a ruthless prioritization that I brought back into finished work.

My warmup speedpaints are 20 minutes, one subject, one color scheme, no undo. The no-undo rule sounds masochistic but it eliminates the perfectionism loop. You make the stroke, it exists, you move on.

After six months of this I noticed my finished paintings required fewer revision passes. The decisions I make early in a piece are better because I've practiced making fast, correct decisions thousands of times in warmup context.