You got what $150 for a wedding was worth, sorry to say. The photos aren’t good but I have seen worse. I agree, none of the questions can really be answered in full without a contract to refer to. I would not and have not done any portraits without being paid in full up front (prints or disk later, if not included in the session fee) sinc this fee covers my time, talent, and the post processing. It the client suddenly decides, after all the work is done, they can’t afford prints or don’t want them, then I would have done all the work for nothing. You have to pay what was agreed upon. Both myself and the client keep signed copies of the contract, should any legal issue ever arise, either one of us can prove services were rendered or not. But bad thinking on not having a contract… Or asking moe questions beforehand.