I thought some people might find this useful. I started chemo in February and due to complications with the wound from the ‘minor’ sentinel node biopsy operation reopening straight afterwards, I have t been able to have more chemotherapy. I have continued to have herceptin and pertuzamab treatments and will have to restart chemo once I’ve had my breast lump removed. For that one session of chemo, I used the scalp cooling option. It was tough and painful. After 2-3 weeks, my hair started to fall out anyway, and now, 10 weeks post chemo, it still is. Around week 3 I started wearing a hat, then a couple of weeks ago I braved my wig! Yesterday I took the biggest step and had my remaining hair cropped as i finally accepted what I had left was never going to be nice hair. My wig now fits better and actually I feel more comfortable around the house without the silly straggly bits! 
Thank you for posting these pictures. I am sure they will help many ladies going though this treatment. As you say, at least you tried the cold cap, but its not for everyone. A very personal choice. Your wig, by the way, looks wonderful! And I agree that once you have “braved the shave” it’s not so bad on the other side.
Best wishes for the rest of your treatment.
Hugs