>>11308341
This one shows the piecing together better.

Here's a normal sfw I just finished, Initial gen to finished. You want to piece together everything before you do upscales. You can still "upscale" it at the same resolution to make the pieced together parts blend with each other.

https://files.catbox.moe/sulbm0.png
https://files.catbox.moe/1tdttm.jpg