Low-polygon tutorial
In this tutorial, I'll show how to create a low-polygonal image.
First, open a new canvas in Photoshop CC. Size is preferably small, and set resolution to 600, with a transparent background. OK.
Open the image that you want or copy and paste, and resize. I will be doing a jellyfish. You can either leave the picture as is, or cut out the background, which I will be doing.
Right click the first layer and select duplicate layer. This is so you can have a back up layer, just in case you'd like to change shapes or do a different style.
Using the magnetic lasso tool, you can easily select the main object. Again you don't need to this.
Click the select tab, then inverse. You can then press Delete or cut, this will delete the background.
Next go to the view tab, going down to Show, then Grid. Be sure Snap is checked and Snap to has Grid checked. Then select Polygonal Lasso tool.
Select your first area. Always do a triangle shapes to give a nice look.
Go to Filter, Blur and then Average. This will blur the selected area. Deselect with Ctrl D.
This is the only tedious part. Continue making your shapes.You can press Crtl F for the last used filter, and then Ctrl D, and eventually it's a repeated motion.
This is what I finished with. If you kept the background, you could have done the polygonal shapes onto it, or left it. I put a gradient background.
You can finish with that. I copy and pasted the jellyfish and made a small school of them.