How can I tweak this (US) Southern themed cocktail? It periodically falls to me to produce thematically-sound cocktails for wife's Book Club meetings.  Tomorrow, we are serving the Southern Discomfort (for 'Gone Girl'):

2 oz blood orange juice
1 oz Bourbon (Maker's, this time)
0.5 oz Aperol
0.5 tsp agave syrup (too lazy to make simple)
dash of Scrappy's Aromatic Bitters


It's almost there... still, just a little 'meh' - what suggestions to round this off?
How about some thinly-sliced peaches? Seems relevant to the Southern theme and complementary to both the heavier bourbon flavor and the other fruity notes.

You could sub out the agave for peach syrup if you want to live on the edge.

Rhubarb is also a Southern classic that could be an interesting addition. But I don't know how you'd implement that.