Damn you NSFW tags when at work. Remind me to go check it out later
Long soft hair. Yes, it's impractical, yes, you can accidentally cause quite a lot of pain by lying on it etc, but it's just...I dunno. Both my ex and my current girlfriend had short hair when I met them, and both grew it out for me. Yeah
Tattoos: one or a few can be nice when done right. Depends on what your point is. I know quite a few people who have their kids' names on their arms/back/butt/..., and, well, no, I wouldn't find the names of your 4 and 6 year olds staring back at me when we're about to
a turn on. Quite the opposite. On the other hand, both of my girlfriends' sisters have self-drawn tattoos on their back, and both are...interesting. *cough*
A back/neck can be very beautiful and engaging, if it's a nice smooth curve, just right. I don't want to see your spine, or, on the other hand, have the two sides of your back touching each other over your spine, though.
And while I'm generally attracted more to the relatively slender girls (no, not the skeletons I'm sure you can all post in 5 seconds *sigh*), I'm a complete nut for my girlfriend's belly. It's soft and pudgy and fun to play with and sleep on
Biggest turn-OFF by far is too much make up.