Internal tool
Fill in your details. Add your headshot if you'd like one. Check your links. Copy it into Gmail. About two minutes, and then everyone at Vacatia looks like they work at the same company.
Gmail on the web, Gmail on your phone, Apple Mail, and Outlook.com all play the animation. Outlook on Windows desktop does not. It shows the first frame and stops there. So make sure frame one is a frame you would be happy to use as a still photo, because for some of your recipients that is the whole show.
The Gmail app only does plain text signatures. Leave the mobile signature blank. Your web signature still rides along on most replies, and a plain text one stacked on top just looks like clutter.
Two usual suspects. Either you skipped the Save headshot button, so the picture never got a public address, or the person reading your email has images switched off. Nothing you can do about the second one. Everybody sees your name and title either way.