What's wrong with this picture?

Last fall I was very ambitious to be planting tulips in the backyard. I planted LOTS of them in the backyard and my favorite dog, Winni, decided they weren't planted in the right spot so she ate some! I was so mad! I wasn't quite sure how many were still planted and I even went out and bought more to replace the bulbs she ate. I had a color scheme planned...dark purple tulips and white tulips with white alyssum.

Well, the tulips have grown and are just starting to bloom. I was so excited to see this....


It is beautiful! After this started blooming, I noticed more were about to bloom too. Look closely at the next picture. Look closely to see what's wrong with it.
Do you see the YELLOW flower? It wasn't suppose to be yellow. I was ripped off by Target! Oh well, it may not go with my color scheme, but atleast it grew! Next year I guess I better get bulbs from an actual nursery or reputable source.