There is definitely a needed balance between the greek theme and the fireworks theme. I like the different direction with the use of the firecracker to bring the fireworks theme to the forefront.
We like the direction of #14 a lot. The comments I'm hearing about it is maybe too much black outline, maybe a different shadow or 3D effect, something other than a black bold outline.
We really like entry #14. Still one of our favorites. Could you please try and give the words a little less black, and maybe the metallic look. Is it also possible to clean up the building on it a bit to look a little sharper with maybe a little less black. Your concept of #14 is still a number one pick, it just needs a little refinement on the look. Keep the logo the same, just possibly cleaned up. We would love to see that!
Your last entries added too much Parthenon, not enough Olympus. I'm sure my imagination is a lot more difficult to apply to the real world than I realize. Maybe the answer to too much black is to use the blue image of #133 (maybe shined up a bit) in the one we like the best of yours...#14.