I would not go with yellow shades. I would leave the as they are.

Interesting! i like the colour you have done - its very subtle & not a vivid yellow. I have also been looking at patterned shades which incorporate yellow amongst other colours. I’ll attach a photo & would value your opinion on this too. Thank you.

I like existing color more

Thank you Celery. I like the patterned shades better than a block of one colour. You've enabled me to make a few comparisons - I appreciate that.