I think it depend on your intension, and I like your picture.
Sometimes, I make a very tight picture with small empty space.

But, I like empty space. I often pay more attention to background and empty space than main subject.

I agree with Lost Patrol.

cropping only really becomes an issue if you need large digital/digitised files to produce large prints from.

If I dont loose the quality of picture, I dont hastate to crop.

Long telephoto lens is very expensive, and heavy.
I may spent money for a high resolution camera (and crop the picture) rather than longer lens.

? ? ?
No offensive.
But, this is an art work using photo in my opinion.