This is the kind of 2d games I prefer, my favorite 2d game of all time is The Curse of the Monkey Island.
I like what your team made so far, I played the demo and for me this is the most professionally made construct 2 game I've ever witnessed, the animations are perfect, I like the cartoonish style, some things may be improved:
- If its possible, set the character to move in 8 directions , make an animation for each direction ( Like in The Curse of the Monkey Island).
- Character should talk and be more reactive ( Blinking eyes, moving head ect ... )
My 2 cents is that try to imitate the game that I stated above, not all the features but the most important ones, then I can garantee you that you're game will be noticed and succeed.
( The game took them 3 years to make )