It's fine and if you like it that is all that matters. I think it is awesome and it is a nice fit.

It's not too big at all. I think it's refreshingly big. To my eye most artwork is too puny.

Looks perfect to me. I like how the colors in the painting pick up the colors in the brick. Good choice!

I think its too big as in too high. Something that is a foot down or a little more from the ceiling would look best.

I don't want to, but I disagree with the others. I think it looks too cramped there with only a few inches to the ceiling. I would like to see something more delicate there so the space doesn't feel as overwhelmed.

I think it might be too tall too. It sort of brings down the ceiling. Now if your ceiling were a foot taller, it would be perfect.

The size doesn't bother me. If you wanted it a bit smaller, you could reframe it and reduce the width of the brown border/mat.

IMO it's not too large but the darkness of the mat overpowers the space.

Have you tried resting it directly on the mantel? Will bring it down a few inches and that might make a difference.

Thank you all for your thoughts! There was another similar piece that was closer to the size of the "inner" portion of this one. Maybe I'll try the smaller one and see how I like it.

lucky - we did have it resting on the mantel when we first brought it home, but decided that it didn't look good, even though it did give us a couple more inches at the top.

I think you could use this size or one a bit smaller, but keep it strong.

I think it's fine....I think it just needs some 'grounding' by adding some stuff in front like candles or vases or something so it becomes more integrated with the whole arrangement.

Like other responses - let it sit on the mantle - put some other accessories up there and see if you like it better - size wise.
To me it might work that way - but, right now from the pics it looks larger than your tv screen which looks odd to me.

In my opinion, while that's very nice, it doesn't look over your fireplace, since you already have a lot of rectangular/square shapes going on in that part of the room. I think something a bit more organic (trees, forest, meadow) would look nice.

Maybe something similar to this in your style?

Here is a link that might be useful: painting

Addition to my above statement...I would keep the lovely picture and hang it vertically somewhere else in your home. I would look for something that has the same horizontal measurements but has only the white matt framed part height for above the fireplace. If you cannot find a picture you like in that size a mirror would also look nice with some cool statement accessories in colors that jive with what you have. I see that you have a tot/baby by some of the things in your room. The fireplace mantel could be a place to add some non-enclosed accessories where little hands can't reach.

It looks like you have it on blocks...maybe just rest it on the mantle and you'll get a different proportion...

I think it's too big and dark. I would put something smaller there and perhaps round, flanked by candlesticks or some other decor items on the mantle.