Here's Valandar's "Kaiju" figure from DAZ sporting one of its supplied bump maps as a diffuse texture and a turbulence node for displacement to get that distinctive bark-like scaly surface.  The spinal plate props are from Gareee's add-on set for Digital-I's T-Rex.

I created a "partial masking" texture I plugged into the ambient channel, thus making only the outer edge of the spines glow.  Finally, I plugged a "gather" node into the alternate diffuse channel for the skin so that it would capture a bit of the ambient blue as though it were a true light casting source.

The final effect (all done "in render" rather than "post") creates the distinctive sequence of Godzilla "charging" himself to unleash his infamous "atomic breath".

Sincerely,

Bill

Tempt the Hand of Fate and it'll give you the "finger"!