Great take on the challenge! I love the unexpected theme. To answer your question, the Gallery Guidelines which can be found HERE say: "Layout size should be 600x600 and 250 kb OR 800x800 under 200kb". Please note, layouts don't have to be square-they can be any shape, as long as they stay under the size limits.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.