Hi, I am not sure to understand where you have seen the negative points.
I have replied your game and at move 16 I do not see any negative points.
This is the screenshot of the reply:
filedn.com/lR2aHzdlPsN8zvmXc75nQtX/teatimenegative.jpg

With 4 cards you get 10 points, no matter if you have the "normal" or the "mirrored" version of the cards.
So 4 normal rabbits are worth 10 points. Also 4 mirrored rabbits are worth 10 points.

The minium points you get is 1 with just 1 card, and the maximum is 15 with 5 or more cards.
So it you saw negative points I need to understand exactly where because it is definitely not ok.

Remember that if you have 4 "normal" rabbits for example and you collect 1 "mirrored", then you discard 1 "nomral" and the just collected "mirrored". Is this what you mean by "negative"?

Thanks,
Ema

Thank you for coming back :-) and for highlighting the score!
Now it is really clear :-) Really appreciated.
However that is not a -10 ;-) It is a 10 but the border of the rabbit with the hole on the teapot picture is showing like a "-".
But it is not. Indeed the rabbits gives you 10 points. If you sum up all the points: 5+6+1+1+10+1 is exactly 24 points which is your score.
If you count a -10 instead of a +10 the score would have being 4. But it is not.
So the scoring is ok, there is no bug on the final scoring.
There is only an "optical illusion" on the picture...
I am planning to change slightly the borders anyway so I hope to remove this "illusion" :-)

Thanks again for your feedback.