Great job for taking the plunge and posting your artwork for critique. That's a big step forward.
It's natural to compare yourself with others. But you're right that it's not really helpful. I would study close-ups of Will Terry's work and try and fail to work out how he did it. Do you have a copy of his new book? I was just studying his picture of the zombie and his subtle use of texture is amazing. It would make me envious, but I've learnt to consciously force myself to take it as inspiration, rather than comparison.
I really like your artwork, composition design and line work. I think a lot of our peers have said good things to you already.
My only input is to work on improving your use of light and shadow, and depth of field. So a bit more contrast between your lights and darks. And remember that hills and buildings on the horizon shouldn't be sharply in focus. I think Will, Jake and Lee were talking about that in one of the recent 3 Point Perspectives.
Keep it up pro!