Lamps. Keep or return?

I picked up our bedside tables yesterday and lamps today. 

When I brought the lamps home I realised the shade is actually off white (kind of yellowish?) and not pure white ... Our walls are Dulux Whisper White and the quilt cover is pure white ... What do you think of them being off white? Are they too small? Keep, or return and keep looking?

Don't you love my throw "styling"? LOL. Please forgive me - I have lots to learn :)

B