Plein air

I've been having a painter friend of mine, Melody Phaneuf, critique my paintings. Here is what she said about this one:

"Get some Rembrant Sevres blue for your skies. It will brighten and give you more warm/cool variation. Do you have any Monets at your local Art museum? Look at how he interweaves the paint and plays on the complementaries to emulate the essence of sunlight."