Follow-up to my previous request for advice, which option looks best ?

These are the options I narrowed my selection down to. The real couch colour and the real OSB colour of the bookshelf are in follow-up pictures.

Should I keep the rug and courtain neutral ?

What colour should the armchairs be?

Thanks for your advice!

For pictures of the space without furniture you can check my previous post: https://www.reddit.com/r/HomeDecorating/s/TXIEHiPQAW