[Warning: Some viewers may find the following to be very cheesy...]

Daniel,
Today, on your 24th birthday, I find myself thinking about how you have given me the greatest gift I could ever ask for: you! To wake up with you every morning (well, I get up several hours later than you, but you know what I mean), work with you every day, and share our passion for photography, travel, and each other, is just more than I could ever have dreamed of.
I love you so much!

Davina