I think you gave a good answer.
Its a bit much to go into decomposition and other such nasty-sounding things to a 5 year old, and I think it would've been wrong to pretend you believe in an afterlife just because it opens a few cuddly answers to the question.
Perhaps when he's older, you can discuss your beliefs in greater depth, and then he can form his own opinion, like the rest of us.
Congratulations on good cousin-ing.
Its a bit much to go into decomposition and other such nasty-sounding things to a 5 year old, and I think it would've been wrong to pretend you believe in an afterlife just because it opens a few cuddly answers to the question.
Perhaps when he's older, you can discuss your beliefs in greater depth, and then he can form his own opinion, like the rest of us.
Congratulations on good cousin-ing.