These colours are so tranquil and lovely that I had to participate in this challenge. Then I remembered I had done a card in very similar colours, for a friends daughter who finished Grade 12 last year (just one of quite afew friends with children about to finish their schooling).
What you need
Cardstock - Bazzill Basics 'blue-greens'; SU White
Stamps - PTI For the Graduate, Embellishments
Ink - Versacolor Mint, Turquoise
Punch - SU
Gemstones - Zva Creative