Preheat oven to 350°F. Line a large baking sheet with parchment paper.
In a large bowl, combine all bark ingredients and stir until well incorporated.
Place bark onto prepared baking sheet, and spread a large piece of plastic wrap over the top. Use a rolling pin to spread the bark out to a 1/2 inch thickness.
Remove plastic wrap from bark and bake for 20-25 minutes, until the bark turns a nice golden brown. The edges will be slightly more cooked, but this is OK! Allow to cool slightly while you melt your chocolate.
In a double boiler, melt chocolate and coconut oil. Spread evenly over cooked bark, drizzling the last little bit of melted chocolate to create a drizzle pattern.
Allow to cool for 5 minutes before topping with pistachios, cacao nibs, rose petals, and sea salt. Place in freezer for 30 minutes, then remove and cut into pieces!