The challenge lasts for two weeks and you could win a $10 gift certificate to the store! I've used Pick Me Up Truck, coloured with Promarkers and I came across the papers when looking for something else!
The 'sand' is an embossed cardstock 12x12 stack from The Works (£3 for 24 sheets) and the aqua and patterned paper were in a starter pack when I bought my Sizzix machine.
Sizzix die cut tag that I've handwritten plus a bit of freehand doodling with a black fine liner pen and the clouds are Memory Box dies. Good luck with the challenge!