I am quite sure it will work.
If you see my previous photos, they are the same as yours. purplish.
now its much better. not perfect but much closer.
Actually you can try this too.
- Take photo of you white sandbed. Use this a WB photo setting. When done, take anohter photo of the white sandbed. again use that as a white balance setting.
After 2nd WB setting, your photo should be much closer to real life already. just use WB bracket towards blue.
I did it this way