The reason I ask this is for comparison of large VS small start-up projects. IMHO the larger you start, the more detail and chance of revision and fine tuning. So....to kick it off..... The smallest I usually start with is approx 1500w X 1000h. Typically 3000w X 2000h. Have also doubled that on occasion, yet it takes lots of planning & patience. Most times those end up multi layered compositions. Newbie Questions welcome, C'mon Lurkers!!

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Ockham's razor- It's that simple