Factors to consider when determining brow shapes:
The following factors should be considered when deterring eyebrow shape
A person with small features would look over powered by heavy brows, while a person with larger features and a larger face needs a more defined eyebrow.
Face shapes
Most clients do not have perfectly shaped eyebrows and are not aware that the unusual shape of their brow could be creating a negative effect on their appearance. The practitioner needs to learn to communicate with the client and to discuss improvements sympathetically and carefully.
By communicating with the client and using the basic aesthetic rules the practitioner should determine the proper shape for the client’s eyebrows during the consultation. The practitioner should give the client a visual by drawing the corrected shape using conventional cosmetics. The visual impact is highlighted if only one side of the face is corrected initially and once the client has noted the difference the other side of the face is also corrected. If the client is not used to the change it may be advantageous for her to wear the cosmetic enhancement home to show her family and friends.
A wide face can look narrower by adjusting the beginning of the brow closer to the bridge of the nose and placing the arch closer to the pupil rather than the iris. Be careful not to place the brows too close together.
A narrow face can look wider by placing the arch of the brow in line with lateral aspect of the iris to create the illusion of a width. The beginning of the brow remains in line with the medial canthus of the eye and the flare of the nostril.
A round face can look more angular with an angular arched brow

An angular face can look softer with a rounder brow