Firefly and Text

I am trying to get Firefly to render text in what looks like carved ice. I have my composition image with the text (max-strength) and I grabbed a reference image of and ice block (style and visual intensity set to low) but when I generate all I get is blocks of ice. My text isn't even appearing on the image. I tried the same using snow with same result, just photos of more snow. On a few occations I just get my text added on to the image (and even then it isn't always correct). 

What am I doing wrong?