It's really nicely done, maybe just some fresh cloud white paint from Benjamin Moore? It really adds a lot of texture and interest.

Explain to your husband that visits to the Emergency room = $$$$$. Air borne wool fibre can irritate people with these sensitivities and can lead to long term health problems. People with eczema often have breathing/lung issues (not always...but it is common to have both). Exposing people with wool sensitivity to 24 hour wool is a recipe for expensive medical treatment. Synthetic fibres are your best option if you must have wool. Solid/hard surfaces are much better/easier on people with sensitivities as they reduce airborne particles and allergens. Hardwood or cork would be a much better choice for air quality.

HI -- I don't think there is a particular name for the style of the window frame trim ... it was just someone's artistic touch from that time . Maybe a Moorish Arch ? For the window itself .. perhaps just search window styles and you might find something . I am assuming that your windows open out from center like a French door would . Maybe they are called French windows ???

Plenty of comfortable seating