The Gacy Murder House Antieau Gallery, Royal St., New Orleans Why is it so easy to admire this dollhouse hidden in the corner of the gallery, its rooms so tidy, well-lit, pinked with flowers, ginghamed in patterns, molding and frames as white as white allows? Is it the respect its artist had for the spaces that make such places homey? Its tasteful furnishings? The neatness of design allowing us to overlook skeletons lining the crawlspace beneath its floorboards? Portraits…