Im not sure what Mapping means, but I do enjoy 2D drawing ect. What does that entail?
Mapping, as in building a landscape out of given assets as trees, bushes, rocks, adding hills, valleys, rivers, ponds, whatever the landscape requires. Usually done with Unity's terrain editor (in lif's case).
As for 2D stuff; very specific side views of animals. Like, head to tail side-view, wings usually top-down when spread, stuff like that :)