Why a brush and not a sheet
Applied art comes in sheets and wraps: printed designs pressed onto the nail and sealed under gel. They are quick, they are cheap, they can look excellent, and they are the same on every nail and every person who buys them.
Painted art is a drawing made on the surface of your nail, at the size of your nail, following its actual shape. That means a floral can turn with the curve of the nail bed instead of distorting across it, a line can taper, and no two nails are identical because a hand made them.
It is slower and it costs more and there is no argument for it beyond that difference. The studio exists for that difference.
What translates onto a nail
A nail is a curved surface roughly twelve millimetres by fifteen. That is smaller than a postage stamp and it is not flat, which decides more than people expect.
Translates well: line work, botanicals, abstract colour, marble and gradients, geometric shapes, single-subject illustration, script if it is short.
Translates badly: anything with a face smaller than four millimetres, dense repeating pattern below a certain scale, photographic detail, and long text. Not because it cannot be painted but because it reads as a smudge at arm’s length, which is the distance nails are actually seen from.
The useful move is nearly always to take one element out of a busy reference and let it own the nail, which is the conversation that happens at the start of every art appointment.
The timing
One accent nail: about ten minutes. Two to four: twenty to thirty. All ten with real detail: an hour to ninety minutes on top of the set. Say at booking roughly what you want so the appointment is long enough.