Next Up? Travel Lit Picture Book

I've started writing a children's picture book and I am having a ball. It's something I've long wanted to try and a good friend of mine has been trying to get into the "biz" for awhile so is acting as my mentor and editor. I'm on my second draft and have started haunting children's book message boards and will be submitting my manuscript to a critique group when I feel it's good enough for "stranger" consumption. The concept is very embryonic but it will be travel literature for kids 3 - 8 and of course, a goat plays a leading role. I would love to make it a pop up book, but that's far down the road.