Learnt the basics of rendering in Arnold.
Gamma correction and .tx conversion for linear workflow.
Learnt various kinds of lights used in Maya and its Arnold attributes.
Various shaders like aistandard, aihair and aiskin used in Arnold and its parameters.
Learnt how to use depth of field and bokeh effects.
Learnt Arnold's AOV system and how to batch render all these pieces of information for compositing purposes.