HIC master looks really good! Now that the silicone has cured and it's new, rolling it for a few days should be ok, but if you leave it rolled up like that I fear it could crack and become useless. Just something to keep in mind.
I don't know if you are planning to make more than the one copy to sell, which you totally should because it looks fantastic and would really help with funds. The work you've done is unreal!