OP: Do yourself a favor and get on youtube. There are some great videos showing how to do this correctly.
Key points:
Floor needs to be very smooth and all defects/joints need to be pre-filled and leveled.
Even a slight indentation will cause the material (pigment) to pool, killing the effect.
Joints/cracks: Gel crack fillers can produce a slight depression which telegraphs big time through metallic coatings, again the pigment flows within the resin, so it reacts to any un-eveness. We use polyurea joint/crack fillers for this reason.
Lastly, I am sure a 2nd coat of primer was recommended?? It produces the best effect as there is less drag on the floor and better flow.
You would not know about these tips unless you actually performed the installation before. Any start/stop would be impossible to hide and will stand out like a sore thumb.