Help, i cannot figure out how to make this

im trying to make the satisfactory ore in a 16x16 grid so i can inplement it into minecraft but i am very new to pixel art and dont know how to get started

rocks and ores are rough, for starters you can take a look at the main colors and try to figure it out which shapes can remain separate and which cannot, take a look at a mod called gregtech, their refined ore are similar.

image_2025-02-12_215117412
something like this?

you need to scale up things that are too tiny in pixelart if you want to show it, aseprite has that function build in, use the export feature in file>export>export as, you can them change the scale there while the image remains the same size