Thanks for your help ladies! I am really feeling much more confident about this cake now!! I’m planning on making the shamrocks out of modeling chocolate or fondant-cut out with a cookie cutter, and writing the names of his favorite bands with edible marker, and brushing luster dust for color. I’m going to buy my own printer and edible ink/paper and print out the edible images, and probably make a square tiered cake and put the photos on the sides, alternating with the shamrocks.