Ah, I just tried this out and I only played a little (up to the Misty Lake itself), but it's really fun! Everything looked well executed and felt pretty natural, I really like the Skill system. Also, the hidden items are a super neat bonus, I can't believe I almost missed the YY Orb. Anyways, my main gripe with it were the huge interior maps, there's lots of empty space and you can perfectly fit everything you need in a much smaller space. Other than that, for now, I'm having fun. Also, I suggest you change the character's titles to actual titles instead of just their main element. For example, "Holy Maiden of Pain" fits Reimu, rhymes, implies her main element is Holy AND it adds some flair to it!
P.S. Also, SEVA nailed the thing about the length.