Valentine Paper Piecing

Paper piecing is so much fun.  Especially when you do one of your patterns backwards. Can you find the mistake I made in this cute Valentine design?  It is sort of like an I Spy game for adults.  One of the hearts is facing the opposite direction of the other two.  That was not intentional.  Paper piecing requires a lot of concentration and attention to detail.  And when you have two 7 year old boys trying to ask you 50 questions, play in your sewing space, and generally annoy you it is hard to concentrate.  But I love all their noise and every time I look at this sweet design I will remember them.  Happy Valentines Day.