Who doesn't look great in red? This plant combo outside my office window is still going strong. Autumn Brilliance serviceberry (Amelanchier x grandiflora), compact burning bush (Euonymus alatus compacta) and bloody cranesbill (Geranium sanguinem) all strut their stuff for several weeks during the fall.
My Northern red oak (Quercus rubra), on the other hand, never turns red, just a milk chocolate brown. It's losing its leaves today. All of them. This is one smart tree, as we are expecting heavy snows midweek.
What color(s) is your garden wearing now?