As the title says, I tried to give the coat a nice transition from purple to blue with wet blending, which worked well with the first layer, but then gave such corners with the second.
I had thinned the paint quite a bit so that the colour would spread evenly. (3x colour: 2x contrast medium: 1x water)
But after the first coat, the whole thing wasn't opaque enough, so I applied another one. I didn't leave 10 minutes between the two coats, because I heard in a tutorial about Citadel Contrast-paints that the colours can still activate then and so better transitions are possible.
Was that a mistake or did I take too long with the next layer?