Sorry Jack, I just don't think there is much more to say about it. It looks good enough, not a picture that grabs my attention and holds it but it is ok.
Not sure why you are so adament about not cropping the right hand side. It is all dark, has nothing of interest and is forcing the stamen into the centre of the picture. The angle of the stamen is slightly right to left which means cropping the right edge off moves the stamen off the centre and has it pointing towards the wider area of the picture, hence a good composition.
Worth thinking about and I think you know that already simply by the fact you are predicting we will say you should crop it!
Cheers,
Rob