Core workout with more reps

GRWM Wedding Edition: 4 weeks until our wedding. This week I plan to add weight and reps to my workout.
Burpees 3 sets of 10 and 30 jumping jacks
Sit ups 5 sets of 10
Russian twists with 5 lb weight 5 sets of 10
Plank to elbow 5 sets of 15 each elbow
Plank hold 30-45 seconds
Weight crunches standing with 25 lbs. 5 sets of 15