vector art is art made up of points, lines and curves and represented by mathematical equations as opposed to mapped pixels as in a raster or bitmap file. Vector art is resolution independent, meaning that it can be scaled to any size and retain its sharpness and detail at no loss in quality.

do you know any easy tutorials how to make these?
or anyone here in symbianize know how to do these?

its a craze on our department now and there are only limited people who know how to make these on photoshop and other graphic engines.

if you're one of those. why dont you share your talent? hehe

or show us some of your works

samples! (images are copyrighted)
http://designfruit.com/dfassets/images/tattoo03.jpg
http://www.melissaclifton.com/images/tutorials/vector/vector01.jpg

delete if already posted. ^_^