I just love the brightness of the tulip field! So pretty. It would be so great to get to take photos somewhere like that some day...! Tulips seem like such a Dutch thing, as do windmills. The cultivated forms of the tulip are often called "Dutch tulips." In addition to the tulip industry and tulip festivals, The Netherlands has the world's largest permanent display of tulips at Keukenhof, although the display is only open to the public seasonally.
I was pretty amused by this particular stamp when I first saw it - the postcard featured on the right is Finnish and reads 'Talviset terveiset' ('Winter greetings'). Heeee!