I imagine that your ceiling is peaked right above these windows?

How about installing a rod on the same angle as the ceiling on the wall around this window? The rod should have something on it (little hooks) so that when the curtain is on, it doesn't just slide down.
Sheers could potentially work to cut out some of the light, and I believe they come in all kinds of transparencies for a little-to-a lot of light blocking.
This option might help cut down the light and heat, but you will not be able to open/close them :-(

i think there are cellular blinds you can get that would fit exactly the contours of your window..they are great for heat and cold too.

Unless you are crazy about those arched windows, I would get rid of them. They date the home and, as you know, present a very awkward window covering issue. I have one in a bedroom but the ceiling is flat above it so I just hung drapes from floor to ceiling.

stained glass design in cold colors

Since you have existing verticals on the bottom windows I would just do operable drapery panels from ceiling to floor on a decorative traverse rod.

I would tear them out and do one solid arched window OR just leave the window below.

how about cellular or pleated blinds with blackout or sunblocking fabric for the larger window. you can also get your arch windows templated for a permanent cellular shade. it does look rather nice finished :)

I recommend installing clear window films designed to block the heat, glare and UV light but not the natural light. 3M is one company that offers them. Most window film manufacturers have a nationwide network of dealers that sell and install them. In my experience the cost of the materials and installation has been less than window shades or blinds. Sometimes window film installations qualify for tax credits and/or utility rebates. Good luck with your project.

It really is easy to do. I make my own window coverings for my clients. it is really simple.
1) Using tracing paper or some kind of paper that is really thin and flexable, put it over the top of the polladium window and trace the outline of the "inside" of the window and cut it out.
2) With a 1/4 to 1/2" foam board - (just so it doesn't extend outside of the window casing) use your above outline as your pattern to trace your board and then cut it.
3) With your selected material place the fabric wrong-side up, placing the patterned-cut foam board on top. Before you cut, allow at least 4" extra all round the board. This extral will allow you the ability to fold over your board with ease and simply staple. This fabric may be a fabric that is totally non-expensive because no one will be touching it up so high, but exactly what you would love to look at. NEVER exchange your vision for cost. For your vision may last for years. When you take Years against Cost, the cost becomes far less.
4) With the Window under the polladium window simply get a rod to fit arcoss the widest width of the 2 windows and place it under the polladium and hand curtains of your choice on "rings" to allow you to pull open are closed or if you choose, close curtains on rod and simply pull with a tieback of your choice closer to the bottom of the window or if you like shades, you can cover a regular white cheap shad with fabric to match polladium and add a beautiful tassel as a pull cord.
I do hope I was able to help you some in your decision. i would love to know. My Facebook account is janet williams hill. When you suggest me as a friend simply message me also so I may know who you are. Happy decorating.

oops I forgot to mention - you will want to cover both sides of the polladium window foam. So outside will look as great as inside. p.s. stables do not show.

Window tinting. We had the same problem, we were unsure about shades, blinds, curtains etc. Best decision! Stops our furniture fading and keeps out the harsh Australian sun. Good luck!

How about having mirrors cut to fit the arched windows?

We have the same window issue, replacing it is $1800 so we need a cheaper,solution. I like the idea of tinting, if it helps. We would like have some privacy in the dining area.

I would look into stained glass decals.
http://www.wallpaperforwindows.com/pc/home.asp