My Boring Bedroom

Hi everyone, I would like some help designing my room, as you can see it is quite bland at the moment. Currently the accents in my room are my wooden door and bed frame (golden brown pine). I would like somewhere to display my board games and my media collection (DVDs, CDs and vinyls). I also love artwork/posters and colour in general. As you can see that my bedroom is quite small so it would need to be functional. I store my clothes in another room so I don't need a wardrobe here. Any tips advice or ideas would be much appreciated! Thank you!