I admit I didn't like a lot of Melvel's first songs. But if you listen to their discography, they do get better. And I think Hime's vocals did improve over time... even through Melvel. But I'm glad to see them take this step. It's a big leap from where they were.
I haven't followed them close enough to know. Mirumo keeps deleting his tweets, so if he has, he's erasing evidence. But I'm staring at the haircut.... and lips. And maybe it's just me. but they're looking the same.
After seeing the track list, I'm sensing hints of Hime. He's the only person I've seen use all hiragana or all katakana in most track names (even if there's an obvious kanji available). It's almost kinda annoying. But I can totally believe that this could be a new project of Melvel.
I'm not sure if others feel this way, but it'd be nice if people posting new releases could write the release titles if known in the post title. Easier on search function and over time it'll keep there from being a lot of vague title releases by each artist...