Background practise

Just some background practises from references to get into it.

References by: McRockefeller / Hue Teo / Mohamad Javadi / Juan Aguilar / Yun Ling / Amei Zhao

References: McRockefeller / Hue Teo

References: Mohamad Javadi / Juan Aguilar

References: Yun Ling

References: Amei Zhao / Yun Ling