Thanks. I tried to find the drawing itself, but it seems to be lost. I did that way back 2021 and I remember putting all my drawings in a case. The sad thing is my mother remembers throwing a case, though she's unsure of the contents.

As for the method to get the best blacks, I remember using a 12b from staedtler because their pencils are affordable, but you can't just use it how you would a normal pencil. It's too soft and makes the blacks shiny. I ground it and mix with mineral oil to make something like an oil paint. I dip a q-tip or a blending stump then use it.

Careful using it though, it takes sometime to dry and smudges easily. Finish drawing with the normal pencils first.