敬先上馬行再點木成術,藝不止茍且須擊馬為驚

Prepare to join in a festival in a school,  which media  to use?

Charcoal? no.  pastel, Chinese ink? watercolor? Due to time, I have decided to do 3-5 head outdoor oil color study for my own collection, unfinished/unpaid for later commision.  purchase after tasting 

敬先上馬行再點木成術,藝不止茍且須擊馬為驚.