Melissa Anne Miller is pretty famous around these parts for her art. And now, marking a 20-year collaboration, Miller’s stuff is once again hanging on the walls of McGowan Fine Art. The show will run till Dec. 19, but before it ends, Miller will be hosting a studio tour at 45 S. Main St. in the loft at Orr & Reno, on Wednesday, from 5 to 6:30 p.m.