I'm guessing it's BigBreda who shared those images and will be posting his review soon.
I can't help much since I had nothing to do with it's development but some of those issues seem a bit out there?
The sculpt is far from soft they actually increased the sharpness of it so much his stubble is protruding now which is a change I didn't really like since he is mostly clean shaven when wearing this armor, his hair was also changed to add more volume and details up top.
The collar covering his neck is a matter of futzing, I think it will probably move up if you try to raise his arms up but the neck will still be visible to some extent, I do think it is too wide tho possibly to avoid staining the neck by constant contact. The shoulder pads look just like the prototype I assume you mean they look horrible when you try more dynamic poses and they lift up?
None of this figure was advertised as having real leather and it was announced before InArt and other companies came onto the scene with real leather, BuzzToys is a new company who never produced a full figure, they can't afford the costs of real leather, as far as the buttons that was a worry of mine too but if he didn't find them in the box then it's most likely a QC oversight by a factory worker, thankfully there is a small bag included with extra buttons I'm sure.
The base wasn't included in the original prototype, it seems to me like the factory just provided a really cheap one for this release so people didn't complain about a lack of a base I probably won't have him on a base anyway. LIM bodies can be produced with either tight or loose joints, I'm guessing BuzzToys decided for loose joints but I honestly can't say since I like I said, I didn't develop this figure and neither did LIM, LIM provided the body and assisted Buzz and is handling all the shipping and retailers, that's it.
In any case from all the pictures and videos I've seen myself it looks pretty much exactly like the prototype which is a great feat for a starting company, I look forward to getting him and hope it has no issues, I will be displaying him the cloak.