Make your artwork look like they're from an alternate universe. These Cyberpunk presets work with Photoshop (via the Camera Raw filter) and Lightroom. Download all 788 presets for 90% off.
Now it ctrl/cmd + T and rotate the flare "burst" to -45% or whatever looks good to you.
Merge the lens flare layer with the flare "burst" layer. It shouldn't change the look, but it will make it one object that you can move around and adjust later.
Then set the blending mode to "Linear Dodge" or "Add" mode. You should see that the light looks very intense and shiny which is exactly what we're going for.
Now you get to duplicate the flare layer as many times as necessary to get a good number of flares over your shape. I resized certain flares here and there so they look slightly random and unique. Once you're done with that, group all the flares layers so you can keep track of them if you'd like.
Open up your paper layer and select a good portion that you want to use. This will serve as a vintage texture, and you can get creative by finding other images with an "old" look to them like scratches or grungy textures.
Paste the selected portion at the top of your document and take a lot of the saturation out of it. We aren't using this layer primarily for color really, but a slight tan/yellow/orangy color is nice for retro since it makes things look old.
Set the blending mode of your texture layer to "soft light" and set the opacity down a bit to 75% or so.
Now select your "V" shape in it's entirety. This may involve you holding down ctrl/cmd or shift and selecting all your "V" layers.
Now holding the option key, subtract half of your selection. Now you should only have one half of your "V" shape highlighted.
Create a white to transparent gradient and make a short gradient off to the side that you've selected.
Set the layer's blending mode to "soft light" and bump down the opacity to around 75% or so.
Create a new layer on the top, and using a large soft brush and the color black, paint over the upper corners of the "V". You can use a gaussian blur if necessary to make them look right, but depending on the brush size you use you may or may not have to do this.
Create a new layer adjustment for "levels" at the top of your document. You can do this by clicking the button on the bottom of the layers menu, or by going to Layer>New Adjustment Layer>Levels. Now adjust the settings by moving the blacks in a bit, the whites in a bit and playing with the mids till it looks nice. Below are the settings that worked well for me. This will just give the image more contrast.
Your wallpaper should now look similar to this. If you're not satisfied with the level of intensity, then play with the levels adjustment layer more till it looks good to you.
Now if you're arrogant like me and you want to boldly sign your wallpaper, or if you want to give it a phrase or just add some text, you can do that torwards the bottom of the "V" shape, and it looks nice there.