What is Good Writing?
Good writing is complicated and it is most definitely an art. Just like art, beauty is in the eyes of the beholder. There are so many different writing styles and so many canvases to write on, it is almost impossible to do it wrong in today's day and age. So if it is difficult to write incorrectly, just enjoy it and write about things that interest you.
One article in particular did an incredible job at teaching people how to have fun while writing. Both the article and I would argue to think outside the box and break the mold. Many sources will try to teach you that there is a cookie cutter way to write, but there is not.
If you are a good writer and you enjoy what you are writing the words will just flow, there will not be a wrong way of doing it because people will see the passion in the words. Other people do not necessarily need to enjoy your writing for it to be considered good writing.
Good writing also takes practice. If writing is an art, just like art, it is not going to come easily. To some people, writing comes easily, but it becomes perfected overtime. All you can do is enjoy the process, and check for improvements. After a while word choice and sentence structure become more elegant.
Good writing also comes from good preparation. If one mind maps and outlines what they are going to write about, it makes writing much easier. The words will flow and there will be structure. Not only is it more structured, but you are also engaging the creative part of your brain. You may think of a writing idea that you otherwise may not have thought of.
Overall, writing is a beautiful thing. Learning how to write takes time. So to answer the question, what is good writing? I would answer that there is not a specific answer, good writing is everywhere.