Farobi
not a bad member
Thank you, senpai ~ I'll try to mess around with these thingsFor the squares, or pixels, make a new layer.
Then go to Image > Apply Image. The new layer will have a copy of all the other layers on it.
Next, go to Filter > Pixelate > Mosaic. Set it to any number that looks good to you. Then Sharpen > Sharpen the layer 2 - 4 times.
Last, make the layer Overlay, and erase bits you don't like.
For the dots, just get a halftone brush, make a new layer, click once, and set it to overlay. It's pretty simple, so feel free to fiddle around with it.
Good luck with your Shop!