All work and no pay. Judgment from court because judge will not allow evidence?

I did a landscaping job for a ';friend';. after which she loaned me 900. of which I paid her back 100. I refused to pay her anymore because she would not pay me for my work. She took me to court, judge would not allow me to show photo evidence, job receipts, or affidavidtes. Judgement went to friend for 900 plus interest, can I appeal?