As usual, I am going to have to disagree about the lighting...and it may be that the lighting/exposure is okay and the processing is too harsh. Hard to tell with an image this small but my feeling is with high school seniors, except the sports guys who want more of a "grunge down in the middle of the scrum," look they should be a bit softer, This is especially important when shooting young ladies. Soft skin tones sans blemishes, etc is what the girls want. Soft boxes, scrims, reflectors, anything and everything that will make them stand out above the rest. The pose is okay though I agree with Tirediron about the crop. Just a thought.