Yeah, if you look at the "Raw Model Files" you will find both tree tops for both sizes there. You should be able to use the same tree profile for the top part
Just an FYI, the large tree canopy holes do not align with the large tree pegs. I have tried scaling it up to 125 % but can not get an exact fit. Maybe there is an error in the measurments for the holes on the canopy? Let me know if I am doing something wrong. Thanks, I do love the work and the new blocks you have created.
These are not sized for gridfinity. These blocks are sized for the base DungeonBlock grid base (35mm x 35mm blocks). You could potentially scale these up to fit gridfinity though via trial and error.