Sorry forgot to attach photo,here it is:)

I like @kelly's idea of picking a lovely fresh color of paint for the door. You can then bring it down onto the stair risers. Either a solid color to match the front door, or go wild and add some decorative elements to the risers with stencils. Or think of staining the door a great color and coordinate the stair railings and risers. I have an idea book put together for just such project that might spark some ideas for you. http://www.houzz.com/ideabooks/16700983/thumbs/Kathryn-Delany-s-Decorative-Stair-Risers

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These spaces can look awkward but yours is quite inviting with those windows. It could become a retreat space, that allows someone to be near the action without being in it. Seating or lounging would work with the very low head height. I could imagine it would be a great spot for a couple of cool beanbag seats, a small funky bookshelf and a sleek retro lamp, or if you have children to cater for a games setup with storage in a retro ottoman.