A Three Step Rose
Step one ...find the darkest pattern shapes and paint them. Connect them whenever possible.
Step 2 ...Find the mid-tones. Both neutrals and full hues. make no mark that is darker than what was established in step one. Make test dabs and double check. Move slowly but with the strategy in mind.
Step 3 ...find your lightest shapes and connect forms. Less is more here. Nothing can be as dark as what was established in steps one or two.
That's is the strategy for how to paint this rose. I am not sure what to do with the background . I need some time to think.