By the way, I absolutely love that porch. And I do agree with the idea someone else mentioned that bare windows look best, as long as the windows are large and/or somewhat interesting (like yours.) That's why we almost always have the blinds pulled all the way up. But yeah, the light at certain times of the day is problematic, hence the need for blinds. I think either size would work, given your measurements. The sills are still shallow - mine are 5" from the window, and seem shallow to me. But really, the answer is probably just based in personal preference. Can you get one set and see how it looks? Do you want to be able to set anything on the window sill? (Vase, flower pot, etc.?) I have never heard that 2" blinds are "classic" - I don't think there's any standard like that - blinds simply aren't a classic residential window covering. No 1825 New England house would have had them, though it would likely have had working louvered exterior shutters. But, they are simple and basic, so they fit into a classic setting. It makes sense that 2" blinds create fewer "lines" across the windows, since they are larger and you need fewer to cover the space when shut. And that should also mean that when in the open position, more light is let in, which could be a good thing. I haven't noticed excessive "line-iness" with mine, though. I hope people don't confuse the 1" wooden blind look with the 1/2" plastic mini-blind look. It's funny... I used to always have the smaller blinds, and to me the 1" looks pretty chunky.

I agree with applepieorder and RL Relocation as well. That whites do not always have to match totally. Secondly, I notice that you have window sills only (no other molding apparent on the windows. If you want to, you could paint just the sills as a diy project, but you know, I believe I agree with applepieorder that you don't HAVE to. I would enjoy your wood blinds like they are, and make that decision down the road.

Have a look at the Blog posts and Colorography Lab at The Land of Color .com for attributes of lots of popular paint colours. It allows you to compare similar colours in detail. If you are looking at whites/off-whites or indeed any colours, note that the higher the Chroma the more colourful colour. A colour maybe so low in Chroma you might struggle to immediately recognise in which Hue Family it belongs. Even so, every single paint colour does belong to a Hue Family: identifying which, helps you combine colours with greater confidence. Here are some popular whites by comparison.

The cat's name is Arthur, or just "cat". He's Siamese, and was the inspiration for our white/tan/brown/blue palette. The wall color is Glidden "Delicate White" - it's just off-white enough that it doesn't feel harsh and our pure white trim still pops. Not a huge fan of Glidden as a base (it's very thin) but it came out too white when we tried to switch to Behr.