First Friday in February will be marked by opening of the "American Trees: Painting Air" exhibition at the Lunaria Gallery. The exhibits include oil paintings by Marty Gabe covering the subject of trees. Marty Gabe’s most popular theme is nature – in this way she shows most essential things in life. One of her previous collections depicted selected waterscapes of places downstream. This time it’s the other aspect of nature. The show runs through Feb. 27.