How can I achieve this texture result in Blender? I've just received a job to make the photorealistic version of this chair. My approach is to model it like how it is made in real life. First I will model the metal frame, and then model the weaved bamboo stripes on top of it. But then how should I achieve the look in the image? I'm thinking of choosing diffferent brown shades for different stripes. Is it realistic? If not, what should I do to achieve that look?

Thank you for your time!
There are probably a lot of ways of doing that. You could just UV map the complex geometry. It doesn't seem like overlapping UVs would matter in this case. You could just select parts and project UVs from view how you need them. You can also use a multiple UV maps - maybe one for individual straps if they have some texture along the length, another for all of them(for the sides) based on camera views for the smooth bigger darker and lighter patterns.