You mentioned in your brief the day of the dead, a skeleton holding a guitar. Our first thought was, fun, colorful and exciting. A skeleton reflecting the traditional day of the dead and if it's holding a guitar, then he must be serenading someone. So it has to be a day of the dead mariachi! We kept it traditional with typical mexican colors, lime green, rosa mexicano and yellow.
We also used a typeface that reflected a festive Mexican atmosphere.