Hmm! Looks like it's already tending towards black Wez.
With 6 coats it might be indistinguishable🤔 Midnight on a moonless night?
Still looked a nice blue with 2 coats.
A word to the wise if I may!
Looks like you are getting some light 'orange peeling'.
Which suggests that you are spraying too thick in one pass.
Possibly too close? Stay about 30cm (1 of His Majesty's feet🙊) off the surface.
Or too slow in the pass?
Can also be caused by the paint not being quite mixed in the can or the pressure is dropping.
TIP: Try standing the can in hot water for several minutes before shaking; to raise the pressure and help thin the paint a little more.
Hope this helps!
PS DO NOT warm the can in the microwave! 💥