Concrete Floor Art

I just found out this beautiful floor at The Transparent House and I wanted to share it with you. Like you can see this is a concrete floor with a peculiar design in it; it looks like if it were some kind of polish concrete and that for a final touch they added the design.
I was really eager to find out how did they do that so I searched all over the web but the only answer they gave me was that someone call the place where this original design appear, but they only told them that they were only the dealers but not the one that created this.
Anyway even if they did it or not these are great designs, and we will be guessing step by step until we find out how they did it.

While I tried to find out how to do some of this designs, a person told me that maybe the first one can be done with a material called micro cement that is added after all the floor is done with a template of the desired design. (just a theory)
And if we take a closer look to this second design we can notice that the flowers are not just a stamp, is like if they have done it with some kind of mold while the concrete is still fresh.