Look very carefully at that picture. Try to ignore its various imperfections, of which there are many--I painted this by the light of a single candle. Just look at the color.
Does it look like a gradient to you?
(lol, sorry; say hello to my balcony/picture-taking place! Hello...)
Again, does that look like a gradient?
Because it is.
I'm afraid that the color distinction from the base of the nail to the tips was difficult to see in real life, because I'm strangely phobic about color gradients that are really obviously done. I wanted this gradient to smoothly transition between the orange and the red jellies that I've chosen, but I suppose there isn't enough area on the nail to do so without fooling the eye. It's most definitely smooth.
If it exists.
So, tell me... is that a gradient, or is that a really good gradient optical illusion?