Here is how she did it:
I took some cool photos of white puffy clouds and had them blown up 28" x 40" on glossy poster paper. It was 30 bucks to blow up and then I framed them in Ribba's from Ikea. I photo shopped the images a bit to make them have that Lomo camera poloroid vibe and Wallah! Big original art for under 60 bucks! Woop Woop!
And here is and Etsy Version for $25
Etsy sellers will commonly to custom orders if you want to order a larger scale.