Tom, you may well have the best of intentions but you're 'teaching granny how to suck eggs' with Kev and others who've proved themselves time and time again.
The responses I've read show a withering effect on the patience of fine modellers but admit no one comment would be problem if taken alone.
He, like others, posts screenshots partly to boost his own enthusiasm for building models at a time when others have given up.
I admit there's a fine line between advice and criticism and people can easily be misunderstood but I reckon most would agree that it's best to err on the side of encouragement.
If you're wondering what it has to do with me, the answer is that Kev is a very good friend and a man of few words on the forums. His models speak for themselves and he's well respected being one of the 'old school'.
No one doubts you have talent but my advice would be to hone that talent, upload something so that we may be able to make comparisions and you will be able to speak to other modellers having experience of the 'rough and tumble' uploading produces. Some couldn't hack it and gave up. I'm sure you wouldn't want to be even in part responsible for anyone throwing in the towel before you'd been in the ring yourself
John