Eyebrows are pointed, angular, round, straight, curved, and arched. The rest of the shapes are just variations of these main types.
As mentioned earlier, the first and foremost criteria should be to sport an eyebrow that compliments your face type. And this is especially true for the thickness of the eyebrows. Thick eyebrows can either endow you with a classic and chic look or else may very well give a cheap look to your face. So be very careful with them.
Then it is closely followed by the facial bone structure, the shape of your forehead, the brow bone, shape of the eyes, and distance between the eyes.
The positioning of your eyes, naturally sets a look to your face. For example, you may find people with a perpetual droopy look because of the hooded eyelids.
There are also people with a perpetual inquisitive or surprised look because of the very high arch and pointed shape of their eyebrows. So considering all these you should opt for a shape that will flatter your facial features.
In short, it can be said that your facial features play an important and significant role for choosing the best eyebrow shape for your face.
The end of the perfect eyebrows should ideally be tapered quite distinctively and the length should not be too long.
Try to go to the same beautician everytime you go in for plucking, as she would know what exactly you want and what suits you the best. Because once you lose excess hair, eyebrow growth takes its own time.
Hope this information helped you with some valuable tips. Keeping all these tips in mind, you can go and experiment with different eyebrow shapes.