I love this design. I love how it mixes the beauty of a flower with the skull. I love skull tattoos even though i think people see it as a symbol of death or even evilness. I see it as; underneath it all we all look the same.
Sigils for magick - again, some of them are purely so that they can be spotted when others use them, especially that 'Creator' Talisman. You'd have to be suicidal or insane to use that...