Pixel Hissis
I made the base for these in late 2009, and I continued making them until 2014. At the time, I went by a different name, as you can guess by the pixel signatures.
These felt insanely intricate to make, especially the ones with feathered wings. Here is a progress animation of that:
As for the hissis themselves:
Dark Organic
Dark Mechanical
I also made customs for people who requested them:
