Eh, it's more of an overall thing than just the one. The better translation is a massive plus for me, since the word salad nonsense of the "completed" translation of the first game just kills it for me. Better art in CA2 as well. I also felt that the gameplay (from what I recall) of CA 1 was either overpowered as all hell with full armor or gimped to being completely useless if you don't have the armor, though it'll been a long time since I played it (what parts of it I did play at least).
But both have a lot of the same issues with the design of the game in general. It's honestly an issue with the developer IMO, wolfzq does great art for the character designs and scenes, ok-ish stories, and absolutely terrible game play design choices. You can see the difference in some other projects they're part of (from the outside based on the games they've done as the sole listed developer). Sword Maiden of the Azure Dragon has the same issues as CA1 and 2 with the bad design, Fallen Valkyrie might be going the same way being from the same developer group (wolf and someone else). The Agnietta is also a colaberation between wolf and another developer, but is far better as a game. I'll freely admit that it could just be me not liking the game play style that is in most of wolf's projects though.
