I didn't get through because the flints didn't ignite themselves, but that's not your fault.

So, points of criticism:
-The Scenario lacks a clear direction, I never saw anything like: "Go east, my scholar."
-cine could flash whenever there is something new
-The use of right and left clicks could be explained a little better for the chest and the backpack, and you don't mention how to close them.

Btw, I like the principle that you have to get the help yourself, adventurous players will be allowed to find out themselves.

I did not have someone who does not know clonk sit in front of it yet. My feedback so far:

Yes, great! The tutorial guide offers to explain everything, but doesn't give order nor HAS TO explain everything, it's up to the player. That's cool. One thing about the tutorial guide, perhaps Maikel (or you) will need to offer an interface for that first: Right now, you have to click the message away every time after you read it. It should disappear as soon as the explained task has been done successfully.
Some more feedback about the tutorial:
+ Some typos and clumsy/compilcated formulations (f.e. I remember reading "primary slot" and "secondary slot", better explain that the two slots to the lower left shows whats in your left/right hand. Also, somewhere "shown in the HUD" or something. Just say "shown on the lower edge of the screen" because the HUD may be everywhere. Especially for references to elements in the HUD, the pointing-arrow could be used)
+ The scenario lacks a clear description of what the goal of the scenario is ("Reach the flag on the right") at the start of the round
+ Every aspect is explained once but also only done ~once (except perhaps movement with WASD). Why not let the clonk climb, jump, hangle and dig over some more stuff / some longer parkour? As soon as one aspect has been explained, you can use it in the scenario. For example I'd like to see some thicker rock-wall (or several of these) at some point, where the clonk has to do the typical work of going back, digging out the flints (and perhaps loam) to slowly mine himself through that. That would also let him train the usage of the backpack (Tutorial guide: "Hint: With Q, you can open up your backpack in which you can store collected items. [Insert explanation how to use it here]"). So, I like Svens original plan to have the first tutorial as some kind of easy-peasy parkour.

Some feedback on tutorial 1:

* The underwater shovel is really hard to see. Maybe let it glow a bit?
* When you have passed a section that was explained in a message, that message should disappear (either just be gone or replaced by another). E.g., the message telling you how to scale still stays there when you have reached the hangling pit
* The mountain tops can be reached if you go back from the flint section to get a piece of loam and build up right before the goal. I think that's the perfect place for some fun stuff :)

first some general things for all tuts:
I would suggest to give all the tuts the same structure. same as in clonk rage. i would orientate on tut1! second one could be about having more clonks (as it is already, but not as a riddle...) and showing how you really need both of your clonks. the enterhaken thing is nice ; and so on...

so, clonkines feedback to tut1:

this is the way of tut i want to see! strict guide from beginning to the end. but i missed the part when prof. clonkine tells us to walk right through the tunnel ;) (ok, i now for YOU all it's the only way, but perhaps not for new ones?

oh just one thing: digging isn't really explained. it's said how you activate your items and so on, but i missed the special digging instruction.
same with throwing flints!

the other things are nice. easy and doable (does that word exist?)

but it could be longer. show more things. like: changing more items from backpack to chest and the other way round (i think i said it in tut 2), digging a longer way from A to B, and dig out some items, show what happens when they fall on the clonk. building a longer loam bridge, perhaps with ups and downs to learn how to use the mouse.

just: show more basical clonk things that YOU all know, but new players don't!

but: all in all, nice tut1!