Entry #4 - we like this... it would be nice to see more of the "multi-facetedness" of our company. It appears that we protect businesses from fire (which is good but not all we do).
Love what you have so far... I think we are getting close to the "tweaking phase"... is there something else that can be done with the lens and cross? I'm not even sure - but maybe making the cross more 3-D instead of 2-D?
Could you make your entry #57 color scheme match the color scheme from entry #20? There is more color transition on the letters and flame on entry #20, and there appears to be a more reflective quality as well.