My latest signature consists of a spectrum text, with the points of the end lettering stretched into long lines.

I am fully aware that by creating a new layer, changing the blend mode to Colour Dodge and then using a soft brush, I can create very effective "glow" effects. I have done this before without any problems.

But on this piece, the brush is merely making my text turn into ugly bright colours. I was hoping that perhaps somebody could assist me.



The above is the signature [still needs lots of work - don't worry! xD] and the settings.

The below is the effect achieved after applying the dabs of *supposed* glow.




What am I doing wrong? All advice is much appreciated and I am very grateful to those who attempt to help me - this is very frustrating!

-The Fame Monster