Your caloric intake looks incredibly low.
By looking at your diet I can see some glaring problems:
1) Not enough protein. Even with the shake, turkey, milk, and tuna you are probably short. The benefits of a diet high in protein are endless (fat used for fuel, hoard off catabolism, ect.)
2) Short on your fiber intake. Add at least 1-2 servings of either fresh fruit or vegetables per meal.
3) 3 Tablespoons of peanut butter should not be used as a meal.
4) Neither should a shake
5) Milk is high in sugar and not the best choice right before bed. Drink a slow releasing protein shake before bed with water or mixed in some oatmeal.
What are your goals? Fat loss or gaining mass? This diet does not look promising either way.