Pour the wine into a glass pitcher. Strain the cherry syrup into the wine, pressing on the solids to release any cherry juice. Squeeze the juice of 1 orange and 1 lime and add to the wine. Slice the remaining fruit into rounds or wedges (for garnish), and add half to the wine along with half the fresh cherries. Add ice and mineral water, to taste. Pour the sangria over glasses of ice, top each glass with a little more mineral water if desired; garnish with sliced fruit, cherries, and mint sprigs.