This fits your. Skills for separating the petals
If you met difficulty to separate the petals apart, you can add some water on your finger to increase the friction so it would be very easy.
You can spray with some perfume to make it smells more realistic.
HCSTAR 1200pcs Silk Rose Petals Mixed Color Artificial Flower Wedding Party Vase Home Decor Bridal Petals Rose Favors B01K1SGQZI