DIY Window Trim - The Easy Way My take on this: for an exposed (non curtained) window, I would embellish this by switching quarter round molding for all the smaller bits and adding a quarter piece to the bottom.
Love this! Add a strip of trim a bit above already existing baseboards, paint between, and you get faux thick baseboards! Other good ideas here as well. 31 Easy DIY Upgrades That Will Make Your Home Look More Expensive