I wouldn't call it Original at all. It's a resprited clone of Yoshi for the original NES.
This strikes me as a relaxed (albeit cliché) throwback to Mario & Yoshi (known simply as "Yoshi" outside of Europe) on the NES/GB.
While it's a nice idea, the mouse control just makes gameplay awkward. A keyboard control option would most likely remedy this.
This makes me relax while thinking yeah good :)
Cute graphics! Also I like the alternative Tetris idea!