Make the strawberry simply syrup. Add the water, sugar, and strawberries to a small saucepan over medium high heat and stir until the sugar is dissolved. Bring to a boil, then reduce heat to medium and simmer for 5 minutes.
Strain the simple syrup into a small bowl. Use the back of a spoon to press the mixture through a small fine mesh sieve until you've extracted all the liquid.
Add vodka, strawberry liqueur, strawberry simple syrup, and lime juice to a cocktail shaker half filled with ice.
Shake for 10 seconds.
Pour the mixture into two glasses and garnish with a fresh strawberry slices or strawberry rose.