http://www.youtube.com/watch?v=OQq-5...eature=related

Here is a video that explains the process <wave>

http://www.quiltingboard.com/t-8342-1.htm

This is a tutorial for doing a split nine patch, but you are actually only interested in the first part which is the half square triangle (HST) she puts in the center of the block. <wave>

Be patient with yourself.
I just got done reading your question for the THIRD time and I caught that word "tip" ... some people call those bunny ears, or dog ears, or whatever. You will find less bulk and fewer mistakes if you trim those off -- see? that wasn't a bad question. Those tips can make a difference. <wave>

http://www.psiquilt.com/2010/02/half...-tutorial.html

At last! A tutorial that shows what I have been talking about, INCLUDING cutting off the dog ears. <wave>

http://quiltville.blogspot.com/2010/...ts-part-1.html

This is a wonderful quilter who is very generous with her time, patterns, and tips. I will also give you her webpage addy, but here is a way to make HST using strips, stitching down two sides, and then cutting the angles ... all you have to know is: the angle on a HST is 45 degrees. On your rotary ruler, you should have a 45 degree line. if you use 3.5" strips, stitch the 1/4" seam allowance on each long side, flip the ruler back and forth, keeping the 45 degree line at top or bottom, you will get the same effect Miss Bonnie is demonstrating in this quilt.
Her website is:
http://www.quiltville.com

she is a scrap quilter and a LOT of fun! <wave>

OK HERE IS ONE THAT i JUST DID NOT TO SURE ON THE HST WHAT DO YOU ALL THINK

This is just my opinion...do you have a lighter shade of brown for the botton of the window or lighter shade of treen for the side? Both the dark brown and dark green are dominating colors and I think if one was a tad bit lighter than the other it would compliment your picture a little more.

Your "Y" corner is fantastic, really sharp and on target, great job.

What ever you do it will be a really great quilt and please show picture when finished!

I have this color green not sure how well will show up

Nope!
I like your first picture. For a test, put the picture on your puter screen, walk away from the computer and look at it from a distance. Some people like a lighter sill, but I like the one you have right now.
When I was looking at other attic windows, I saw this neat technique that you might use that light green for.
The lady had put a sashing (very thin, as in 1.5" strip - - finished one inch) between each block. maybe I should find the link? It wasn't a whole lot more work, and it sort of made the window feeling even more pronounced. <wave>

http://quilterscache.com/images16/ju...ticwindows.jpg

http://quilterscache.com/images1B/delilahsAW_A.jpg

This is what your quilt will look like without the sashing:

http://quilterscache.com/images1B/ritasAW.jpg

I know that there is a higher contrast in the frames in these samples than you have, but I think that it is a matter of taste. I like your sample - - and, don't get thrown by the fact that the directions of the window frames may be on different sides from yours - - it is simply a matter of choice, and you have made yours.
You are doing a good job, and look how far you have come from the beginning of all this when you were saying you had never done anything "fancy" - - you are progressing nicely! <wave>