I did a search on pinterest for burst block ([url]https://www.pinterest.com/search/pins/?q=burst%20block%20quilt&rs=rs&eq=&etslf=2322&term_meta) and also on MSQC (
http://blog.missouriquiltco.com/burst-block-quilt/) and after looking at them, I would go with the middle set of blocks.
But if want totally wonky, definitely the first photo.