Mystery of Unicorn Castle

I liked this one but not enough to buy it. I've not tended to buy a lot of them because it seems like once you 'get the hang' of the style of the game they get pretty repetative and don't have much replay value. I liked the different kinds of tasks they had and it seemed like an interesting story, but I felt like the trial was enough. Good game, not great, but good.

I seem to be having a difficult time with the locked segments of the game and am currently stuck in the wine cellar. I can get the lock in the lower right hand corner open but not the two on top. Can anyone tell me the secret of this puzzle. I am dead in the water at this point. Tkx.