I know a few of the people that made this, so this might be a bit biased ^^.
It looks great, and it is even more impressive when done in this little amount of time. The gameplay/controls feels good, and could be extended in the future to have more puzzle action.
I cannot find any big complaints, maybe the red/green enemy bottles being hard for me to distinguish being colorblind.
I have been trying to find all the little secrets (shades) but I am still missing two of them. Maybe one day I will find them!