Setting Up Supersets

i want to start supersets but im not sure how i would split them this is what im thinking. please help adjust if needed.

1st day
3x20 hamercurls to barbell curls
3x20 db fly to bench

2nd day
3x20 tricep kickback to tricep extension
3x20 bent over row to lat pull down

my legs i will just be working them out regular.