I got it done! This custom quilt finished and it will be delivered this afternoon. I think she's gonna flip as she didn't have very high hopes for it.
I used McTavishing in the background of the applique blocks, flower petals in the blossoms, veins in the leaves. I used the applique vine in the outside border as the spine for my feathers. Then I put piano keys behind the feathers to give them depth. The outside border will be scalloped.
It took way more time than I anticipated but it was worth it.