Don't know if my first message posted or not.. it just vanished. This may help with the red roses:
Here is a step by step tutorial with pics featuring Sharon Harnist coloring red roses with copics:
Guest Tutorial: Coloring and Shading Flowers by Sharon Harnist | COPICMARKER.COM
And... here is Suzanne Dean's youtube video on coloring with reds. It is not a rose but it helps to see how the reds work. Reds are difficult to work with -
Copic Tutorial on Coloring with Reds - YouTube
Actually, after viewing Sharon's tutorial, I might go back in the the darkest areas and add some R39- if you want real contrast which is how I like to color. I am sure this will help. Post pics of your newly colored roses if you redo them... and by the way, I thought your cards looked great!
My Eclectic Spirit