it was wrong time of day,its way to bright and your shooting into the sun,if u are going for a full silloutee then that would be fine but it doesn't look like u are,if u shot these with the sun to your back the subject would be in full light so u could see the details,your camera is confused on what to meter,as the bright sun is confusing it,if u are going for a full silloutee which could be cool if she was in a proper yoga outfit then meter for the sun and lock that exposure on your cam then compose and shoot. could be a cool idea if done right.
as mentioned these ones have exposures and such all over the place and also some white balance issues,