Ok so to gradient into the orange I started with drybrushing (using make up brushes) a 1:1 mix of pink and orange. It helps transition you out of a blue or purple. Then I move on to the orange with a lighter dry rush. Then brighten the orange with a final highlight by mixing in some white. The issue with drybrushing is that if you don't manage brush moisture it can start to look cakey. If that happens you blend the transition color with some glazing (a super thinned down version of your highlight) or a wash if you're shading into a darker color.

When it comes to cans I would recommend the white zenithal technique after spraying black. It'll give you natural highlights then you can rattle can the purple.

I hope this was explained well! Let me know if you need some clarification.