The veins answer first, because it’s shorter.  Basically, with Kjerstie, some of them might be visible when she’s angry if she’s in her human form.  In her worgen form the fur would hide them.  Other than that, not particularly.

As far as the tattoos go, other than my new demon hunter, I only have one character with ink so I’ll be answering this one for Irende.  Because she has enough to make up for the rest of my characters being bare!

1)  The night elf facial markings.  These are just her sign of maturity.

2)  Starting at her fingertips, small violet vines wrap around her fingers and hands to become thicker at her wrists.  They continue up her arms, eventually ending in flower blooms.  These are to remind her of home.

3)  On her upper back, along her shoulder blades, she has a pair of purple owl wings.  She got these ones when she first became a Warden.

4)  On her lower back, right above her ass, she has a tatoo of the Darnassus Sentinel’s emblem.  This was the result of a drunken night with some of her squadmates back when she was a Sentinel.