Began grouting today

I have four risers mosaiced. I have two of them completely grouted. I am using two different colors of grout - sandstone for the banks of the river, and antique white for the river itself. On the other two, I have grouted the sandstone part and will grout the white tomorrow. Next step: Installation - Yay! Then I will post pics. Then onward to the part that I actually enjoy: More mosaics.