"The most beautiful symbols are the ones that represent death..."
That quote came in mind when I first saw the respective scan. So after rendering it three times...(thank you GIMP...) and massacring it to get all the red out of it...I made this, along with a paired card here.
The symbolism behind it is related to the quote. The white lily is a symbol of death. Yumichika's power is killing his enemies beautifully by absorbing their energy and transforming it into his own while enveloping them in a frame of vibrant flowers. Beauty brings death, death brings rebirth, and rebirth is beautiful on its own...
Yumichika rendered from scan here
Background from my collection gathered over the years, if you recognize it, let me know
Floral brushes from here(I think...)
Fonts from daFont
Enjoy