If you are interested in improving the technical components of your footage perform a gimble calibration on a level surface and consider cropping and straightening the horizon in post production.
If your expectation is in receiving glowing critique and favourable comments generally you will, that's the nature of things generally and people won't ordinarily bother offering suggestions/opinion as it is almost without exception poorly received. As seems to be the case here unfortunately.
From what I can see here people have genuinely offfered a few tips which are likely to assist you in your future efforts. Choice is yours if you feel they are valid. Seems they are offered with good intent.