I iced the whole cake with brown ready made icing and then used chocololate covered biscuits & white chocolate buttons for his ears, white chocolate buttons & chocolate chips for his eyes and piped caramel topping for the other accents. I will NEVER use caramel topping again for this purpose. As soon as it warmed up it started to melt and slid off the icing. It would have been ok if I served it immediately but I didn't so it took a lot of touching up. In fact I made 2 cakes for this birthday (the other cake for the day before and another birthday party) and the other cake was much more of a disaster but I will put up a post about it anyway because I liked it before it fell apart.
My daughter was absolutely delighted with her monkey cake, hence the handprint the moment she set eyes on it!