What struck me negatively: The chimney could have been omitted purely optical and safety reasons. He is only glued and could break out if the spiral is sometimes overturned. I'm rather cautious ..... but that part would then have the perfect "Verschluckgröße".
And the distance between the house and blue spiral is quite small. Schaffbar Certainly for a child's hand, but still tight. On the other side of the spiral is going on much less. Because you could have let a few CM more distance.
Nice idea, implemented pretty, but to a lesser extent .... but stands under the "Only-motor grinding" out :))
I decided nevertheless to this and for the EverEarth flowers spiral.