Birthday Airplane card

I made this card for Papertrey Ink's use an unused stamp challenge.  I can't believe I've never used my map background stamp, so I used several water based markers to ink it up (with some shading) and stamped it on a white cardbase.  I stamped their airplane and the happy birthday sentiment (again with markers) and fussy cut them out.  I attached the plane with pop dots.

The card seemed a bit plain, so I added score lines to make a frame and tied some thread through 3 small red buttons and hot glued them on.