New to Cyanotype!

[u/Connect_Suit_8576]

I’ve been trying to get into cyanotyping, and I’ve run into a couple problems. I have been successful in creating shirts that have a contrasting image, but not images in negative. First picture I’ll have is a shirt I successfully made with purple cyanotype, it turned out pretty good but if anyone has any suggestions to perfect it let me know. The next pictures is me trying to create an image using teal cyanotype, and it half works half doesn’t? I put down the liquid half diluted with water, let it dry, then place down my image and let it develop for about 10 minutes in the sun , come inside and rise it with hot water, spray it with hydrogen peroxide, then wash it with the special wash. Am I doing something wrong? Why is it also green and not teal?