It isn't too much per-se, but there's a trouble with combining the
NMM technique you used with
OSL- one technique gives us the impression the object is reflecting light, but glowing object does not reflect, so the two techniques are in conflict.
The other thing that would help sell the effect is some stronger corner highlights in the direction of the
OSL. Metal objects reflect light very strongly, so you can go all the way up to white with your highest reflections.