Beautiful FP! Are you looking for more permanent decor here?

The snoe shoes sort of blend into the brickwork. I think I would try a work of art instead

Gorgeous fireplace.From your idea book, I could not get a feel for what you want.

I would recommend you remove the snow-shoes, (maybe you planned on that?). Otherwise, it looks like perpetual winter.

Over the fireplace, I would recommend

1) Nothing. That is an option. The fireplace stands on its own.
2) Art. I would choose a lake photo with a lot of grays in it.

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A set of black fire tools to the right of the firebox would look nice.

Your fireplace is wonderful, so I have no recommendations for changing it. I agree that snoshoes don't work as they blend in: find a lovely metal piece of wall art. Pier 1, IKEA, TJMaxx, or online @ Wayfair have lots of ideas at very reasonable prices.

If you are on a lake, then an outdoor scene would be perfect.

Remove all the pieces from mantel - keep it fairly clear except candles? black wrought iron lantern? or even a coloured one?

On the hearth, again keep clear. Replace white bucket with large basket for wood.

Try these changes and post pix and let us know if you like your fireplace even more