Senegalese & Kinky Twist

I'm thinking about getting senegalese twist, however my hair is pretty long and I've seen a few kinky twist styles that I really like, my question is can I get a kinky twist style done the senegalese way, and what is the difference between the two styles.  Also can senegalese be treated the same way as individual braids (i.e. can they be washed, I've heard that you really shouldn't get kinky twist wet) Also I would like to go 3 months with the senegalese, but I don't want them to lock or would that only happen with kinky twist, I would like to get them do with whatever hair was done with these and they will probably have to be in the same length. (If you can't see the pick this is the link http://f2.pg.photos.yahoo.com/ph/ausetsbraids/detail?.dir=/8 9da&.dnm=184f.jpg

but I would like them in this style,

but to work with my longer layers, is this possible for a braider to do.

I kinda agree with cocoahunni. The kinky twists are cool - i have them in now, but I haven't dared to wash them!! They're too kinky and they tangle up. But I think I've looked after them brilliantly!! Had them in a month and they're still OK.

An extra bag is needed though. Just incase you need to re-braid. Coz when taking the twists out they knot up a little and you may lose some hair. 

I'm taking mine out soon been in for about 6 weeks or so. I'd leave them in for no longer that this... They are starting to look a bit fraid and loc like!!!