Tattoo planning and scribbling

[f1n1x]

Here we go. That´s the first scetch of my prospective upper-arm tattoo. I know, it´s a very bad, messy drawing (and I was really afflicted by Murpy´s Law when I did it cuz first, my light-red pen died and then the dark-red one....).
I still have no idea ´bout the background yet but I really want to get it done before summer. Any recommendations?