So glad your brother was so pleased...I can see why...the colors are so bright and beautiful, standing out in stark contrast to the black background!  What a lovely idea, to make him a blanket of his own and switch it out so you could retrieve the original. 
That's such a fantastic thing, to make him a smaller one to bring to school...no doubt the other kids will love it, too!
Great work!  <3
Melanie  (cat slave and Official Feline Can Opener) =^.^=