this year's Trees

Okay, technically the painting on the left is last year's tree painting, but I've revised it somewhat, recently. Preparing the landscape-oriented wall of the studio for the ArTrails weekend. (left: 4 x 5' feet, right, 4 x 6 feet)
I was wondering, when did I start that one on the right? The answer, via the blog's archives: February. Here it is shown in an early phase: