Select desired part of the splash from image created earlier.
step 3 of 6
Place the spash selection on the rose, transform image for better fitting, use soft brush to erase the splash for the desired shape.
step 4 of 6
Aply Gradient Overlay effect, with Linear Burn blend mode, opacity 35%,
step 5 of 6
Aply inner shadow, opacity 75 %, Overlay blending mode, use dodge tool to darken specific parts of splash, change blending mode.
step 6 of 6
For the rest of the roses use the same steps, just change the colors, and some values until you will reach the desired effect, also use blur tool. Good Luck, and I hope this is Helpfull.