I think he liked it. :)
In order to frost so many curves, I used a flat/basketweave tip to pipe over the lego guys like they were mummies. Then I froze the cakes again once I frosted them all over. When they were frozen, I took one out at a time and used a tapered cake spatula (that I dunked in hot water and dried lightly on a paper towel) to smooth the mummified dudes. It took a couple of times freezing and working with the frosting, but in the end, it was much easier than trying to get into all the cracks with a spatula and getting frustrated and upset (which I would have done, I assure you).
What tips do you have to share?