“Wowzers! You look fabulous,”(sic) one follower wrote in the comments section of the post.
“Absolutely Stunning,” another added.
“Gorjys,”(sic) remarked Alex’s co-star Gethin Jones.
BBC Breakfast presenter Naga Munchetty said she was “looking absolutely, fabulously stylish,” while Strictly Come Dancing star Clara Amfo wrote: “Come on!!” followed by a fox emoji.
Other celebrities who are confirmed to present gongs at the online award ceremony include movie star Catherine Zeta Jones, singer Katherine Jenkins and actor Tom Ellis.
You can watch the BAFTA Cymru Awards on social media on Sunday.