Sara- Available Light vs Studio Light

I'm taking this great class on Saturday afternoons at the Tri-Community Photography School in Covina. The class is focused on available light portraits. We get 1-2 models each week and take them to various locations (usually downtown Covina) and shoot them using available light. Well yesterday was interesting we decided to put up a huge 6ft umbrella with a small studio light to cancel out the extra bright sun. We each only get 1 min. to take photos of the model so most of us hang around like voltures when it isn't our turn trying to get candit shots. When you use studio lights, only the person with the wireless trigger can pop the light so the rest of us had to drastically adjust our camera settings and use avaialbe light to get the candit shots while we were not so patiently waiting our turn. I found it very interesting to see the drastic difference between the shots I got with available light and the ones I got with the studio light. Check them out....
These photos are available light:

these photos are with the studio light:


I barely touched these photos up. They didn't really need any edits or touch ups what so ever. Well, I'm sure all those photoshop gurus and crazy creative kids in my class would disagree but I like them the way they came out of the camera so I didn't touch them much at all. In fact the ones with the studio light were not edited at all. The available light ones I just touched up the contrast a tiny bit.