Spreading like a fungus!

My tutors suggested I work more on my sculpture and spread it above the window. I was thinking the same thing I just held back. I did not want to fill the window just because it was in that space. But I am going to add detail in some areas and not as much in the other areas. I am excited about it now, I did not get sleep last night I was thinking about different materials to use. I started making little fungus to pop out of it. I do not want it to look exactly like the image just the illusion of a fungus spreading, I want to make it original and my own.