Oh, I'm very interested to see your creations! That'd be great!
Deviant named SmidA460 already created this:
Goosebumps for G3F+G8F by SmidA+TestRender which offers some sort of one click solution to all of this.
But if you feel like sharing yours, please go ahead and do so. I don't mind.
Large boobs and extreme poses are an issue for sure.
I'd mask out the breasts and recreate the area from the dotmaps in better scale. Then go over the seams and make them look nice.
Gimp 2.10 brought us this excellent tool called Warp Brush. You can use that to fine tune the scale. The seams may come visible here and there, but the pattern is usually random enough to hide small crimes like that.
Breasts in the torso map take quite small area anyway, so it probably takes something like ten minutes to go over the edges of the masked area and remove/add individual bumps where ever the seam is too obvious.
Clone brushing more bumps to the breast area might also be viable option. It takes some time for sure, but it's often faster than one might think.
Hope this helps, Have fun!