You'll need to remove the rgb layer from the twi'leks body and face in the image files. I use gimp so here's what I do. -Open the image -Add a layer mask -Set the layer-mask to "translate layers alpha channel" -Then use erase to remove the alpha channel -You should see a normal looking texture and save it. Unless you like the black textures
Trouble is that the lightsaber on it's own should be a unique and deadly weapon, but they keep trying to out-do the previous stuff when you don't have too. We're soon going to get to the point these become ridiculous and in some ways we've already seen that with the inquisitor sabers and Kylo's goofy saber.
I don't use photoshop but try opening it in MS paint and saving a copy, I know from using gimp if I have my export settings to progressive with jpg I'll get errors.