Remember:
All the textures and opacities should have different names, otherwise, they will work as one, creating conflicts among themselves.
Save your textures in .jpg , with an 8 / 9 quality
Use the wireframe maps as reference
Check allways with the Minimum coverage guide (MGC)
for flares you can use a texture of 256 x 512, 256 x 256, or 512 x 512, you choose
Thanks for support