Your knowledgeable headshot should reflect your position: heat and approachable for Jstomer-going through positions

https://www.dailycommercial.com/press-release/story/158060/studio-introduces-on-site-corporate-headshot-days/

Your knowledgeable headshot may want to reflect your function: heat and approachable for consumer-facing positions, formidable and assured for leadership and executive branding.