Hi Lusc welcome to the Decorating Forum

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I love the bay window

and I think that is the feature in the room. It looks like the ceiling drops down a little over the living area - is that right?
I think I would paint the whole of that room the beige colour. That way it would make the whole of the room a feature.
Painting the room the slightly darker beige colour will also make your blinds on the windows stand out more. Which would be great as it would draw your eye to the feature of the room- the bay window.
Is it possible to put a water feature outside the bay window? Just to again play up what a feature this window is?
I think having the wall with the striped paintings as a feature wall just doesn't quite work - which may be why you are questioning it too.
Let us know what you think?