I am pretty sure I've clicked more than 10 times, but I was only able to locate two spots.

nor fun at all

it seems as if you can only click two things. The flower pot (which does nothing) and the curtain (which closes it). Pointless.

I don't get it. I've been clicking all over the place, but the curtain's the only thing to move

I like the artwork, although the doorknob somehow feels a little out of place(I'm inclined to say the same of the thing in the pot, and the edges of the tank).
The only thing that has any visible interaction is the lefthand curtain.
As I understand your description, the game is incomplete. so I won't give it any stars at this time.

In summary: the artwork is very good, and when this game is complete I'd be happy to give it as full a review as it deserves.