I like no 3, simple strong pattern. Wouldn't mind a full colour and larger version of no 5.
I know it's a popular technique to fuzz waves with long exposures (as on the others), but not one I am a fan of. I like to see every droplet.
No4 and No6 are great images. Although No 6 does make me feel a tad seasick. The horizon is tilting low to the right. This may be intentional but the rickety pier compounds the slightly dazed effect. The duotone is put to very good effect with these images.