1: The more deer there are in De Drinkplaats, the more effects it does. Therefore, if a big group of deer gathered inside it, it'd be something like a mini abiogenisis!

2: This is a gen 1. It is thick and it's parts are very rounded at the ends, and is known for it's mostly straight lines and swirls.
This is a gen 2. It is much thinner and not rounded at the ends at all, and is known for it's very straight lines and filled circles.
This is a gen 3. It is thicker and more rounded than the gen 2s, but not as thick or rounded as the gen 1s. It is known for it's curving lines, and hollow circles and ovals.
If you want to look at all the possible parts of a pictogram, I would suggest you take a look here.

3: I had to guess any time, I'd say probably Easter. But, there's really no telling with there, as the Gods are almost entirely random with their performances.

That is only a glitch ...no worries .
These are guestplayers .....they appear with your picto and other deer are seeing them with their pictos .

I think they have none but we are seeing them with our pictos .
Like i said ....it is only a glitch .