Tunnel portals for Penwith Station

Tunnel portals for either end of Penwith Station were originally intended to be like the famous Box Tunnel but would have been too large for scenic space I have on the end modules. So a couple of the smaller types were picked from the Great Western stable of portals built for the old Broad Gauge lines. Both slightly different for variety, but very distinctive. They are large and have that low embankment angle on each side of the cutting so typical of Brunel when he sculptured the land for his railways.

Those distinctive curved  walls that flank  an otherwise  typical double track entrance.
The black lines marked in on either side show where the cutting  land profile will be.

I used 6mm MDF as the base to add Slater's plastic stone walling. The capping and upper ridge course are Balsawood, the grey areas are Tamiya filler to join all the corners, angles and edges of the stonework. There are three rows of bricks inside the inner entrance edge, edged with a piece of 1.5mm copper wire to represent the round edge brick that ran the whole way around. Once these are painted and weathered, they will look the part.

This portal measures 450mm across and 135mm high! The other portal has the same height
but is slightly narrower.