The public is invited to a First Friday opening reception for Brian Mark’s “Haunting of the Harbor” Sept. 6, from 5 to 8 p.m. at Harbor Square Gallery, 374 Main St. The show will run through Halloween, Oct. 31.

Mark created the medium of acid on stainless steel, in which hologram-like figures and images seemingly appear and disappear depending on their play with the light and position of the viewer to “enhance their calm but slightly eerie feel.” Mark applies various acids on stainless steel and carefully creates color, enhancing the ground-in images with blowtorches or dry ice. He then electro-plates gold and silver to create his ghostly images.

Mark’s largest work in this medium is the 18-piece public art commission “The Practice of Balance” at the Houlton Court House, which compels viewers to examine the complex balances within the judicial system by combining traditional symbols of the justice system and the State of Maine.

Mark is a classically trained artist whose extensive commissions include police memorials across the country and work for the U.S. Embassy in Ivory Coast. His work also is in numerous private collections, including the Witt Family Memorial in the National Cathedral, Washington, D.C. He resides in South Portland and will be at the opening reception.

Courier Publications’ A&E Editor Dagney C. Ernest can be reached at (207) 594-4401, ext. 115 or dernest@courierpublicationsllc.com.