Son and Yam are pretty cute! They're sooooo much more compatible physically vs. Son and Pat. They already seem to have chemistry in just pictures and clips alone too, whereas Son and Pat have zero chemistry in motion and in pictures. That probably has to do with the fact that Yam is the better actress, while Patricia is still really stiff and awkward. It doesn't help that Son is quite an unnatural actor himself. With Yam, Son's stiffness is at least less noticeable.
Yam reminds me of Mo. They're both young, talented, strong and versatile actresses, but both are underrated compared to other actresses at their respective channels. At least for Yam, she's receiving nang'ek roles and good promotion. Plus, she's still a newbie so she still has a long time to prove herself and to gain recognition. Yam and Mo can both generate really good chemistry with any actors as well. They can both look plain, but then transform into radiant and stunning beauties when dolled up (it's their eyes and smiles). Yam and Mo both have nice slim figures with noticeable curves when dressed in form-fitted clothing, and they both have really versatile looks. Yam and Mo both have baby faces, which makes them suitable for sweet/innocent/cutesy nang'ek roles, but they also have harsh or more defined/sharp features that makes them great in evil/nang'rai roles as well.
Yam is probably Son's second most compatible costar, with Vill being his most compatible costar (and vice versa with Son being Vill's most compatible costar). Son and Yam are like TooMo where they interact really naturally off screen as friends. Let's see if they can generate as much natural and effortless, yet explosive romantic chemistry onscreen as TooMo can though.
