In her upcoming show at Easthampton’s Oxbow Gallery in November, Florence-based artist Caren Hyde will exhibit more than 20 paintings and drawings inspired by Iceland’s wild, rugged, and dramatic landscapes that captivated her during recent travels to the country. “The Long Twilight,” the title Hyde has given her first major exhibition at the gallery, seeks to explore the mysterious quality of the light and mood that prevails during Iceland’s summer nights, when the sky never fully darkens and a misty atmosphere takes over the land.