A cannabis shop, motel and McDonald’s in a row on Heber City Main Street. Cows grazing in the North Fields. Mount Timpanogos obscured by the wildfire-induced haze and ash that swept through the Wasatch Back last Friday. These are but a few of the paintings that can be found in Midway Town Hall during the Midway Art Association’s 19th annual Plein Air Paradise festival, which continues through Saturday. Plein air is a French art form that involv…