You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I'd read about this trick before, but more in the context of finding out the color of light. You put a white piece of paper into the shadow of a tree and see what color it is, then put it in the sun. That sets up your color harmonies and white/dark balance.
What I'm going to try is lighting my setup vs. my canvas in different ways, then attempt to do an exact color match and see how you'd adjust the lighting to match a white, dark, or middle tone part of your painting to your canvas light.
Finally, if you look at this progression (and I'm leaving out about 2 painting sessions for technical difficulties or that weren't oil painting) it looks like every 4th or 5th painting comes out good. It might be that I need to do about 3 trash paintings to warm up to a big one.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
