Nice!
First thoughts,
Text
Sequence
Lick
Emotions
Tile
Hex -pr?
Hmmmm
a tough one..
my first thoughts
1 = CSR : Corporate Social Responsibility??..lol
2 = Fibonacci series, sequence, golden ratio
3 = bugs bunny, carrot, mascot [I am ruling out lick for now as you said you used a previous idea for the last pic, and not this one?]
4 = emoji's
5 = tiles, grid
6 = ism, kaleidoscope
I've put the correct guesses in bold. For the multiple guesses I've left you to figure out which one is correct