looks pretty good. i'd probably bend her just a tad more. you'll be surprised how quickly she pops back up when she takes off. you want to keep the "head" of the main stem as low as you can to encourage the other sites to grow upward.
i hear you on the wire string. i've used twisty ties in a pinch. wire doesn't stretch so at some point when your stems thicken up you might notice the "bark" of the stem growing right over/around the wire. cannabis can adapt to anything.