I didn't have time to test drive the newest version stage but based on the video you recently released on the stage I'd suggest the following:
* More spectators. It'll be a huge boost on the atmosphere. It'll be a marginal thing in spite of the fps as you already have a huge amount of vegetation on your track - a little crowd here or there isn't going to kill the fps. So, place some spectators also in the forest sections, not only in the junctions.
* In some places the roadside surface is a bit too flat and there aren't quite enough ditches. You've got this better than most of the track builders, but there's always room to do even better.
I like how you have added a lots of rocks on the roadside - though!
* The finish line should not be close to a tight corner. It's kind of a anticlimax for a stage if you get better time by driving flat out to the finish line and then crash after it. On the other hand, if you don't crash, your time will be worse... I'm not quite sure whether this is the case with this track or Saksantie - nevertheless I think that the finish line should always be in a such place where you can go flat out to the finish - because most of the driving is hotlapping anyway. It's not nice if you gain advantage with crashing. This is my tip for _all_ the track builders around.
* I like how you have used those small rocks on the track surface with your other stage, Saksantie, I would like to see that on Tuomioja too. It adds a nice little touch to the visual realism.
* It'd be nice if you made a few more "special" places on the stage. Places which help to remember "yeah, after that red house, there's a tight left corner". And it's not only about helping to remember the stage, it's also otherwise nice touch for a stage, if there are some special places like some prone tree over the road or something like that.
Otherwise, it's been great to see the development of your tracks and driving the test versions. You're one of the most talented track builders around in the RBR scene and I definitely want to see more of your work.
So, huge thanks for you. In my opinion, these are among the best tracks released (even the test versions) for RBR so far!