Great couple of challenges. Despite how the colors look, all c/s started as white. Everything was stamped w/ either white or seaglass pigment ink and embossed w/ white pearl ep. The white pearl ep gives it a little shimmer, but it also makes the white look a little more like cream than white.
The sentiment (PSX) was cut out w/ a nestie oval using the out of the box technique. (Tutorial HERE)
The rest of the tiles (SP) were stamped and embossed and cut out. Pretty basic.