Now that the last of the Germnan force is finished I can carry on with the Dutch Town, specifically the Church. I ve decided that as there will be at least 8 main windows and 4 or 6 smaller windows in the building, and that as I want them to be a true frame that I can stick printed OHP to the back of (giving the ilusion of stained glass) the easiest way would be to try my hand at casting these in resin or plaster so I don't have to make a dozen or so ornate windows by hand. This is the first time I have used RTV silicone or resin but I understand it isnt that tricky, and it will also enable me to make other ecclesiatical buildings as and when the need arises (I feel a line of 28mm ruined chapels comming on for Ebay 
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First off I looked at the reference photos I took at my local church (see post below), made a few sketches and worked out the required proportions, before making a basic window master from wood.
This was really fiddly becuase of the size of the arches but after 3 attempts I got it. In hindsight I perhaps should have used platicard or similar, but this is the first time I have made arched windows and at least I will know for next time having wasted an hour. The master was then glued to some foamcard and a foamcard wall built about 5-10mm away from the master to hold the silicone. The wall was glued with lots of PVA and the corners secured with milliput to ensure limited leakage.
Once the milliput has cured and the glue dried the RTV silicone will be poured in and left for about 24 hours or so to set, thus creating our mould for the resin. I am a little concerned that the window frame is very thin and may distort under pressure from the resin, but trial and error is part of the fun of building your own building. Regardless, I am sure I will be able to use the mould, even if it is for making damaged Church windows in walls and ruins. More pics to follow......