Buenos días, ¿cómo amaneció usted?
Good morning, how did the sun rise upon you?

Can you consider it plein air painting, if you paint through a window? We do. My youngest and I love to greet the day before dawn, and her easel is perfectly positioned to paint the sunrise, next to an east facing window. I switched the light on to take her photo, but we painted in the dim light and quiet of dawn, she at her easel, and I, set up in the windowsill.