Copy and pasting = lower resolution

I think this has been going on for some time, but I either didn't notice it or when I did, I thought my eyes were deceiving me.

I'm doing a very simple procedure of using a scanned field of color to paste into an area of a drawing. (The color is scanned from colored pencil; I don't wish to use digital fakes of colored pencil).

So I have a black and white pencil drawing of just outlines, and then I copy one of the fields of color and place it as a layer under the area I wish to color, go up a layer to the pencil drawing and Magic Wand the white area and cut cmd-x, then go down a layer to the color field and inverse the selection and delete the extra "waste" area, and voila, the area of the character is colored.

But it finally got through my thick head that the color I have copied and pasted into the pencil scan is fuzzy and looks out of focus. But both the pencil drawing of the character and all the colored fields were scanned at the same time with the same resolution and color depth.

So why would anything change just from copy and pasting?

i can intuit what you mean Bruce, but ever since i started with Affinity, I've been constantly perplexed at how it differs with Photoshop (or at least my old Photoshop) in regards to pixel layers and non-pixel layers.

you are correct in noticing that the pasted in areas are rotated.

but i'm not following how or why that results in the fuzziness, let alone what i can do to prevent it. or is there anything i can do?

also, i have to correct myself. this might explain why i haven't always been noticing it. it doesn't happen all the time. i just finished filling in the colors of the other areas, and they didn't go all fuzzy.