This cherub, or putto, draws from Renaissance and Baroque art rather than religious angel imagery specifically. It commonly symbolizes innocence, lost childhood, or the memory of a child, and is also chosen simply for its decorative, classical art appeal. Some wear it purely as an aesthetic nod to old engraving styles rather than for any spiritual meaning.
Where it sits
The seated, compact pose with the cloud base forms a rounded triangular shape that suits the upper arm, shoulder, or thigh where that curve can be followed. It also works well on the forearm or calf if oriented vertically. Shrinking it below palm size will muddy the wing feather detail and the cross-hatched shading on the cloud.
Making it yours
Ask an artist for any of these.