I've used BG archaic papers and have added a monster (albeit a very mild, friendly looking one), so that the card is also good for challenge 32 'monsters' on Cupcake Craft.
The idea on Sketch and Stash is to use either new or neglected stash. The dinosaur that I've used was one on a sheet of springy creatures that I bought ages ago from Poundland and haven't used.
I took the photo from an angle partly so that there wouldn't be flash glare, but also so that it showed the 'springy' head of the dinosaur.