the card shows a sunset over the International Commerce Centre at West Kowloon, which is the tallest skyscraper in Hong Kong, with 118 floors and a height of 484m. It was completed in 2010 in West Kowloon and is a part of the Union Square project built on top of Kowloon Station. The Ritz Carlton hotel occupies floors 102-118...where for one night you'd have to pay at least 6,100 HKD or around $780...pffff, peanuts
apart from having two nice stamps, we have a really cool cancellation, which I presume it means that this card was mailed at the HK airport.
The bird stamp was issued in 2006 in a set of 16 birds' stamps, where this one shows us the Common Kingfisher. The butterfly stamp was issued in 2012 in a set of six stamps representing HK insects.