My project in Cement Tile Design and Production for Beginners course

Hello Juan! Thank you so much for this incredible course! The teaching was very good and thorough! I have been making so many tiles during quarantine and it has been so fun! I have a question though. When it dries the colors are not so vibrant any more as when they are wet. I washed the efflorescent off with soap only a coupole of times but it doesn't make a huge difference. I am not sure if I have the patience to wash it 40 times. And I feel like the wood varnish may peel off over time? Do you recommend using any stone/cement sealer to protect and bring the color out?
Thank you so much again for this amazing course! Hugs from New Orleans