I was in Hong Kong for 4 months and I didn't go to that museum. It looks like a lot of fun! Seeing all of your street food pics brought back A LOT of memories. I mainly spent my time in Kowlook Tong and Lok Fu. I also ate all of the street food in Mong Kok! So goooood!
Haha, if you visit again, maybe you can try the one I recommended above. They taste very delicious~ I promise you will like them :)