By Denny Dyroff, Staff Writer, The Times  Chester County hosts a huge number of special events every year and the annual schedule is always filled with art shows and equestrian events. One of the most anticipated art shows each year is Malvern Retreat House’s Art Show (McShain-Horstmann Family Life Center, 315 South Warren Avenue, Malvern, 610-644-0400, www.MalvernRetreat.com).   ...