Depends what your design skills are like. I carefully trawled through dozens of curtain photos on Houzz, selecting the ones I liked. When I showed them to the curtain maker, she carefully explained how that not only did they not suit the rooms or my house (I have old-fashioned tastes in a modern house, was her way of putting it!) but in some cases they wouldn't even fit the windows. My advice is thus to get some advice from an expert first - you can always ignore it later, but it may save you some time. I'm now very happy with all the curtains suggested by the curtain lady - and I still have my dream curtains (pooled silk with swags, romans with fake swags . . .) in my Houzz album . . .

you need to consider thermal needs, privacy issues, light control, noise control, decorative preferences, size of window, room available around and above window, shape of window, budget...that is why a professional window coverings expert is the best to assist.

I love rollerblinds for their neat, sophisticated look. Venetians are a nightmare to clean... x) Plantation shutters are worth the investment. Low maintenance and good in wet areas where fabrics/wood may not be so good. I have a mix of plantation shutters and rollerblinds, with a few curtains. :)

Hi laura_85 Your room looks lovely and the architecture looks classic 60,70s with high vaulted ceilings. You could furnish with a retro vibe with mid century modern inspired bedsides (see below) and I would recommend a contrast to the timber with an upholstered bedhead. Keep the furniture and bedhead shapes in a streamlined design to be more modern. A bed base on legs will keep an open feel to the room. An accent chair is also a great addition to the space- the butterfly chair suggested would be great. Add plenty of textures (bedding, cushions, throws) in neutral tones to soften the room. A couple of small prints above the bed will finish off the look. Consider the window furnishings as well in your selections. These triangular windows are tricky and limit your choices. Best wishes