1. Your brows shouldn't be symmetrical
"It's completely normal to have one arch higher than the other," says Sherrille. "They're not supposed to be the same; they're sisters, not twins.
"I've never met anybody with exactly the same brows. Instead, I like to keep my clients" brows as full as possible and as natural as possible, follow their natural shape.
"I give them a bit more colour and depth, and really thicken and style them up."
2. Take a leaf out of Ms. Hepburn's book
Sherrille's "Audrey" style - inspired by Ms Hepburn's iconic full, thick brows - is the Duchess of Sussex's preferred look.
"With the Audrey, I try to reduce the arch and create a straight look but make sure the ends are quite lifted and gradual all the way through, rather than a tick," Sherrille explains.
"It's a very universal look that suits most women and it's effortless."
3. Straight, not arched
"A high arch can make women look pretty angry," says Sherrille. "I encourage clients to try that and to grow the brows in.
"It's actually more low maintenance [it takes a tint, shaping and trimming every few weeks plus a brow filler pencil]."
4. Over-plucking can lead to permanent damage
"Sometimes with over-plucking, the follicle gets disturbed or the hair doesn't grow back as well.
When I was 13 years old, I shaved my brows because I wanted them shaped but I didn't know what I was doing.
"Eventually I ended up with two half brows and they didn't grow back properly also the hairs created shadow. That's really where my obsession with brows came from because my own ones were a mess.
"Now, my mission is to educate women on what can be achieved and how."
