What is the present for getting all 123 cards in Botanicula?

I got two presents for getting 107/123. What is the reward for collecting all 123 cards? (Is it the third present?)

It is unclear exactly how many cards are needed to get the third present, but getting 123 will should unlock it as proved with the pic below. In this forum post, a user states that they do not have the third present and have found 122 cards. However Tom mentions above that he got the present without getting all 123, and a comment on this guide agrees. To your specific question, it also mentions the exact reward as:

Got 3 gifts at the end (116 or 119/ 123), two of them were mentioned above. Third one is the beet root fighting the black parasite Jedi style :)

Which seems to agree with what Tom stated.

Several sources confirm that getting 123 cards does not award the Mythology achievement, as some suspected it might.