Here's a closer look at the stamped panel.
Here's the reverse side of the flip panel which continues the "the number of years..." sentiment with "the world has been a better place because you're in it.".
Here's the back of the card.
Here's the envelope which I made from the same patterned paper I'd used on the card - I love how that ties everything together! I popped up a name label to finish.
Stamps: SU! 'Number of Years' set, Hero Arts 'Yummy Treats' set
CS: SU! Mint Macaron, Rose Red & Whisper White
Patterned paper: SU! 'English Garden' DSP
Ink: SU! Old Olive, Rose Red, Mint Macaron & Soft Suede
Tools: Sizzix 'Card, Square Flip Its' die, SU! 'Large Numbers' Framelits dies, MFT 'Delicate Lace Border' die, Envelope Punch Board, Sizzix 'Card, Fancy Frame Flip-Its #2' Framelits die set
Embellishments & accessories: SU! rhinestone jewels, Dimensionals