Cute idea and not bad photo, BUT don't think you hid Waldo at all. In fact he is the easiest thing to spot in the photo, with all the light being on him. So personally I don't feel you met the challenge of hiding Waldo in amongst things, making it difficult to pick him out.
Great tongue in cheek shot. Love the spooky dino silhouettes with threatening shadows. The egg is an unusual visual prop that reminds me of a spaceship. I admire your off the wall creativity and humour. Those are very rare qualities in a photographer that can sometimes be lost in the pressures of competition. Therefore I genuinely encourage you to explore your special vision which means more than any DPC score.
Cute/funny! Dino focus is good, but the "man" is hard to see. Lighting seems to be the problem. Too much on the "man" and too little on the dinos. 7 Swash