Salix pink flamingo dying???

Hi all, as you can see from the photos my salix flamingo is not in good shape. It has some new shoots appearing, I’ve given it lots of water. Was bought last year, a grafted tree. I’ve not had one before and wondering how I can make this look healthy again? Is it the heat that could be doing this? I’m amateur sorry any suggestions please!!!!!

 

Mine has some brown tips as well. I try to keep it well watered at all times. They are used to growing next to rivers in nature, so they like getting lots of water. I suspect that a bit of browning is normal, it's probably the sun making some of the more tender leaves crispy, but if the issue is extensive, you might want to consider your watering schedule. The brown leaves won't go back to being green of course, but as this is a deciduous plant, it should look much better in the next growing season.

 

I probably don’t water it as much as I should. I will start to do it more regularly thank you for taking the time in responding, I appreciate your help.

 

Some variegated leaf plants scorch easier than their green leaved relatives, I think its just how they are.
The heat and bright sunshine of recently would probably be the cause.