here's the next step..... putting in windows and window frames as well as a door. Your model doesn't have these colors (yet), it's just showing what I'm doing a bit better. The frames are cubes. The  outside of the cube is a little bit larger then the window hole it will fit. The cube used to cut out the window hole in the frame, is of course a little bit smaller then your window hole. Select the frame, as in the image. Now go to the Surface Modeling tab and choose Chamfer. You will see the model change color and oyu can sellect edge lines now. Select the 4 edge lines as you see in the image, don't worry what happens to the model. Now go to the properties tab and change the radius, until you have the desired result and hit validate. Now you have to cut the inner cube through the outer cube using the boolean operation as we've done before.

 

Once that's done place all of the window frames where you want them. The windows themselves are just flattened cubes. As you can see in my castle, the frames stick out a bit and the windows are a bit back to get a nice effect. The door is made of a cube which has the top edges chamfered.

 

Just a note.... with this model we use a number of boolean operations. We do this because the model itself is not so detailed at all. If you create detailed models, you would use vertex modeling instead, but that's for another time perhaps.

Artwork and 3DToons items, create the perfect place for you toon and other figures!

http://www.renderosity.com/mod/bcs/index.php?vendor=23722

Due to the childish TOS changes, I'm not allowed to link to my other products outside of Rendo anymore :(

Food for thought.....
https://www.youtube.com/watch?v=pYZw0dfLmLk