Fantastic Vacation  
Played the english version, and now I could understand it fully: LOVE IT! Absolutely beautiful. I can't wait for Crystal Faith II.

Fenix Blade  
Not saying you should sell it, you could make a lot of money with it! But do what you will; it's your work. But I think you should make another ending. If Montag must die, then have a final battle with Juno. Also make a prologue so we can see Montag's friendship with Juno. But overall a masterpiece!

Mythic Blades  
This is a kick ass peice of work! You should get into making 3D RPGs. You might even be able to rival Zelda OoT (not really; any game any of us could come up with would never sum up to Legend of Zelda)

Sound Wave Generator  
Very intriguing. I found it difficult to learn how to use, so some documentation would be recommended if you ever wanted to use a similar idea for a commercial product. But all in all, very high potential. Well done.