It's like a goth Dia de los Muertos. I think it would be rad if the skull laces were in different bright colors: yellow, hot pink, neon blue, lime green; just to make it more festive and mexican inspired.
Bones's tat (Crows mean: fearless, audacious, intelligent, adaptable. A higher perspective. The clock represents time but can also mean life. (Idea: the hands on the clock being stopped at a significant time))