Can someone teach me how to do this lights? I don't even know how to call them. Not the black silhouette, the lights (the "lines" and that "light up"), Thanks!
Here's some coarse Illustrator tricks to get some of the wanted gradient effects. Blurs are kept quite minimal. The contrast and color saturation are high. In your model image the colors are flattened to printable range, the highest contrast is reserved for the silhouette and there are much larger blurs than in my example.
See the following cartoon:
Draw a dark backround to see the white. Draw a rectangle and make a bunch of copies. I have this many different colors (W, R, G, B, Y and M) only for easy communication.
Shorten R and G, rotate B, Y and M to the same tilted angle, it's about -80 degrees. Move B to the top of W
Add linear gradients. G, B and Y get white to magenta. NOTE: I call them still G, B and Y.
Give to Y the Gaussian Blur effect. Duplicate Y to the same place to thicken the opacity of the blur. Give to M the Outer Glow effect (Effect > Stylize > Outer Glow, color = Magenta)
Move Y and M to the same place as B. On the top is Y, in the middle is B and below them is M. Give to Red elliptical gradient from white to black. It's a radial gradient, but adjusted horizontally much narrower, actually as wide as our rectangles. This really needs some practicing.
Move R onto G, select both, goto the panel options (top right corner) of the Transparency panel and select Make Opacity Mask. Move the resulted tail to the top of W.
To keep the selections easy lock the background in the beginning. You can return to adjust the effects via the appearance panel. The gradients are adjustable in the Gradients panel. All those panels are under the Window menu.
Make paths with the pen tool, stroke them with a fine brush and play with your blending options such as Outer glow and Drop shadow.