I have mentioned before that I am not really a plein air painter, I am a landscape painter. I work outside a lot, but I also work in my studio just as much. I had this painting in the studio from last summer, or the one before maybe. I can't remember if I have shown it., I think not. But I was scratching my head over it and decided it needed a little more subject. I have made up and inserted birdhouses in gardens before. That is one of my little tricks. I have an inventory of likely stuff I like to drop into paintings of gardens.
What you see in the picture is made of masking tape which I have drawn on a little with a pencil.. I mocked up the birdhouse with masking tape that I carefully cut out with a scissors and a razor knife and stuck to the painting. I moved it around a bit and experimented with the size and perspective until I liked the way it looked. Below is a picture of the tape birdhouse. All of this took perhaps an hour and a half.
Now I will draw around the birdhouse and fill in the space with white remembering to "leave the line" so I don't enlarge the birdhouse by accident. I am going to drop the birdhouse right onto the painting without changing anything else in the area. I want to avoid repainting the background. At least that's the plan, it should be efficient. It helps to plan things carefully, I almost always make the time back later, and I get cleaner looking work.