A portrait deliberately subordinate to the work
BetterPicMost portrait advice assumes the photograph is the subject. A portfolio headshot is the exception: it has to sit alongside a body of work without competing with it.
What that means in practice
Restraint that is chosen rather than defaulted to. A plain background, an unobtrusive crop, lighting that does not draw attention to itself.
The difference between deliberate restraint and lazy neutrality is visible, and it is the whole skill here.
The failure in each direction
Too distinctive and it pulls the eye away from the work, which is the opposite of the job. Too generic and it reads as an afterthought — a stock portrait attached to something that took months.
What decides it
Consistency with the work rather than with any portrait convention. A portfolio in one visual register and a headshot in another is the mismatch people notice without naming.
What still applies
Contrast between hair and background, a crop matched to the display size, frontal light. Subordinate does not mean illegible.