Long ago (just over 10 years) I started a website called hat01. I found this old link on my hard drive today.This was the sketchbook section. Many great talents here, presenting a pick of their own personal favorite work.
Ian JacksonJosé Luis ÁgredaPaul RivocheAidan HarteRichard BazleyJavier Olivares
take a look hat01
images above by Javier, Ian, Paul R and Paul S.