>>362484750
try to figure out where your polygon ends on texture 1, give texture 2 bit of a gradient in color from texture 1, or recolor entire texture if difference is significant

there is probably a more efficient way to do it, but the way i go around it is making some random dots of various colors in different places on texture and then checking on model. you can preview uvw map in blender to see how it roughly unfolds on texture, just go to edit mode on mesh and select polys you're curious about