It seems to look good. This is not a full-fledged SFS, but rather an adapter for high-speed trains with a speed limit of 200 km/h. Closer to Hoch Merzburg, I will actually do a part of either 160 or 200 km/h. I'll try to replace the rails and catenary there.
Something like that. It is still necessary to make a small detail under the bridge, apply a special texture on the beginning of the tunnel, make the inside of the tunnel itself, and also connect the other end to the current network
Other end of the tunnel, near Bad Rinckenburg