Photographers are judged by taste, and the signature is the first thing a client sees below a booking reply. Keep it editorial: generous spacing, a refined typeface, and one accent color that matches the studio mark. The signature should lead to the portfolio, not replace it.
Must have
Name, specialty line ("Wedding and Portrait Photographer"), studio name, email, phone, and a portfolio link.
Helpful
Instagram first, then Pinterest or Behance for your niche, a booking page link, a one-line tagline, and a narrow banner with one image. For headshots, see how to place a photo in an email signature.
Skip
Full-width image galleries and heavy PNG banners. Banner and logo sizes are covered in email signature size.