His song Together is about the end of a love affair and features two males dancers as the splitting couple.
The Eurovision Song Contest semifinals take place in Lisbon on Tuesday, May 8 and Thursday, May 10, the grand final on Saturday May 12, 2018.
Irish country music singer Lisa McHugh praised the "great tune" while congratulating Ryan on getting into the finale, while actor and presenter Rory Cowan shared his delight at the "brilliant result".
It's Eurovision time and is it just us or have they really upped their game this year? It will be represented by Julia Samoylova who was unable to take part in 2017, singing "I Won't Break".
"I think the staging is going to be much simpler, much more pared back, it is not going to be the huge LCD screens we have seen for the last few years".
She joked: "I'm of course jumping right in with the attitude that I can win the Eurovision Song Contest - or at least finish in second place!"
This year's Eurovision Song Contest will mark the 63rd year the competition has been running.
We get it. The Eurovision Song Contest elicits some very intense emotions.
"I think just stepping on that stage, as the lead artist representing the United Kingdom, I don't think anything can beat that", SuRie told fellow commentator Rylan Clark-Neal in Lisbon.
The UK Eurovision act for 2018 was confirmed last month. The movie was shown during the live broadcast of the competition.