Pink over bleached ?

Also which shampoo am I best to use ? Shampoo for coloured hair / natural shampoo sls free or purple shampoo?

If it was done in a salon and you are unhappy with it, your first step should be to go back so they can fix it for you.
The pink could be the remnants of old dye, it may wash out over the next few weeks.
If you want pink, then yes you can put pink all over, it won't show as much on the darker parts and will wash out quickly if those areas are virgin. Your brown looks quite light, so a deep strong pink is more likely to colour the brown than a weak or pastel shade. If you use a very light pink you will get a more peachy shade of pink though as your ends aren't super light.
You can just section off the blonde streaks and cover with foil once the dye is on if you don't want any pink on the brown parts.

Thank you , so if I bought a pink that would fade to a pastel pink eventually which one would you advise ? Would it take ? As the back is a bit more orange than the front bits. It was done by a mobile hairdresser. So I could slap it on and wrap in foil with not much worry about the brown changing colour as it's much darker is that right? The brown is coloured .
Also if I decide to keep it blonde is it best to use the purple shampoo to tone or someone suggested I use shampoo specific for blonde hair?

The pink will take to the brown somewhat, especially as it is dyed. It will still be darker, but a pinky brown.
Blonde shampoo is usually purple, there are blonde shampoos that add golden tones. Depends what you want really.
A pastel pink will not cover orangey blonde, it will go a peachy coral colour.

Thanks for reply
Ok so my next step is to try and get it a more ask blonde than a orangey blonde, how do I do this? I will not be bleaching again.
Then I will be thinking of doin it pink just the bleached ends. Which is best to go for for a colour like in attachments

Tone with diluted violet or purple shampoo first, but your hair is too dark for pastel pink. To get the colour in the pic you would need to lighten further, to a light ash/platinum blonde without any warm tones. (Basically the blonde in the pic)