after looking at the finished cement, i would definitely add some color/dye. in some cases it may look fine as grey, but not most it think. From Young House Love, a faux cement countertop treatment that can be applied right over your laminate. The tutorial gives you all the steps on how to use a product called Ardex with plenty of photos that show you the finished result. Ardex-10-Spreading-First-Layer-younghouselove
from Intimate Weddings - Small Wedding Blog - DIY Wedding Ideas for Small and Intimate Weddings - Real Small Weddings
How to Make Stepping Stones - with a Cake Pan
DIY garden stones - use a cake pan! Also, using clear contact paper to hold the mosiac pieces in place while the concrete sets is also kind of brilliant. You can use broken dishes, glass pieces, etc. - How much fun is this!