I just finished watching this drama. I wanted to see Ohno's acting and well, I think he's cute. I kinda get an image from him, like he's the shy kind of boy, and somehow I can see that in his acting. At least on this drama.
It was fun to see Matsujun too! That face of him (the one from the screenshot) is one of the looks that I love about him. Wide smile and everything.
And Sho, well, I haven't really seen anything of him, but it was fun to see him too. I might watch that drama afterwards. What I've seen of him from Himitsu no Arashi chan is that he's the kind of kakkoi type. I like him.
And yes, Matsujun's photo is bigger on purpose. :)