1st one was harder because I did not tape the edge, lol. Finger marks on the edges while I was turning the pad.  Second one with tape was way easier. It is quite meditative moving the water around. 3rd and 4th also were interesting as the amount of water vs pigment you add definitely affects the cloudy outcome and the variegated outcome. For my variegated one i got these tiny spots where the lightest green was as I moved the pigments around. The spot where they never touched. But interesting verigation as it dried. Loved the class.