I like this idea.detail the silver tribals to look beveled or cracked like stone
I say this because my personal opinion is that if you add much more to what's already been done it's gonna look too busy and just be too much. There's a fine line between it looking good and it being overdone IMO. Don't be one of those Hollywood types that can't stop going back & getting more plastic surgery all the time. :joke:
Personally I love skulls (when there done properly) but I wouldn't do any with what you already have done. Your bike looks good as is. Just enhance what you already have going like BlkM109r is suggesting.