A green and cream/gold theme has linked the elements of the second card. It may not be evident from the picture, but some of the connections are quite subtle but still work to tie the components together - green chalk inked edges, small amounts of glitter in both background and toppers, mesh ribbon behind the birdcage echoing the shabby chic appearance of the script in the paper etc. This card is on the wall in Regal, if you'd like to see the real thing.
Although both cards would be suitable for many occasions including birthdays. anniversary, engagement or wedding, mother's day and more, you could also use them as a very special correspondence card to send a "snail mail" hello to a person who is important to you.