First I want to commend the art, like most reincarnation manga this has a very pretty consistent drawing. We can see the maturity of each character in every changes of season.
Second is the plot, it started out with typical tragic back story. The difference is that the FL (Tia) is not a villanous queen instead she's a naive and hopelessly in love albeit a bit cold woman who grew up with the mentality that she's the prophesied empress. But behold a woman (Jieun) who came from the modern world kick her out of the empress position. The FL ended up being executed by her one and only love.
Then she jumped back to her 10 year old self. She even had a talked with a god and announced that she will never submit to the same fate again.
She gained knowledge and strength, friends and supporters, respect as a woman squire(atm) and even gained the attention of the 3 young nobles and royal. At the moment, the story is still far from the main starting plot. So it's really hard to point out how the story will progress once the Jieun comes to the world. Since everything has greatly differ from the original story.
Third is the characterization of those characters who appeared in the original and reincarnated stort, in the original story Tia's world revolved around being the best empress candidate for the crown prince. She's cold, stoic but doesn't have any ill intention aside from gaining the attention of the crown prince. But it didn't ended up good for her.
The present Tia is more lovable, trusting and friendly. She has friends and supporters who are willing to give it all to her. One thing I didn't like about her is her inconsistency in achieving her goal. She doesn't have a direct strategy to keep her and her papa's head on their shoulder. She will start doing one thing then jump to another. She's not that smart like some of the reincarnated FL who have a good head on their shoulders.
Then we have the prince, the cold blooded prince who chose to marry and make Jieun the empress over Tia. The past and present preteen prince didn't show any love for Tia. He even purposely avoided and showed his disliked for her for some unknown reason(although there are some hints on the story why he did it). Like the typical ML he's stoic and rude at the FL but everything will change(?) on her new life. Personally, I don't like the prince that much even though we can already read his side of the story. Why? Because I can't really feel like he did love Tia before Jieun episode happened.
We also have the father, her father has been a consistent supporter of her although it's not really shown that much on her previous life - only during her last days. I will really cry if something will happen to Papa Marquess.
Lastly character relationship, Tia's web of relationship obviously became massive on her reincarnated self. She even has three men fawning over her. But her relationship with those men are still shakeable. It's also because of her wishy-washy attitude.
Overall, it's a good read for reincarnated manga but there are some scenes that could make you really frustrated at the FL's action.