I agree with Brent's comments. As long as any criticisms are accurately based, and presented in a friendly manner, any modeler should welcome the input. I know I sure do. There's been more than a few occasions someone has pointed out an error, or something I'd overlooked, on one of my builds that's helped me out.
Fact is, I've actually slowed down posting my work because I haven't been able to get the feedback I want. It takes a lot of time to put together a set of photos and post them. Most of the time I do so, all I get are a lot of "looks good", or "that's great", or some other similar comments. While they are appreciated, they're not what I'm posting for. I want to hear that I missed filling a seam, or that I have mold lines showing, or that I maybe added too much rust. Those are the comments that help me improve my skills.
All I can say is thank you Robert (and the others out there like you) who are willing to try and help someone improve. Believe it, some of us really look forward to hearing that not everything is hunky-dory.
By the way, you're Centurions are impressive.