In Chrome, the embed shows the photo and below the avatar, twittername, twitter text and reply/RT/Like icons. All in Twitter font/style
In Safari and Firefox however, It just shows the tweet as a quote in the style of the Grav theme, without the picture or any of the reply/RT/Like icons. So it looks totally different.
Not sure if this is an actual bug or just a different way of how the browsers handle embeds?