Hi, @joyee333. You have picked an interesting topic to be discussed in this community but I bet you can do it better.

• I want to stress out the importance of writing a list of references that you were using at the end of the article to give some credits to the original author. It's a common courtesy in the scientific world and even though, in blogging we should be somewhat loose, certain criteria is unavoidable. Be sure to cite references.

• All of the images you were using are copyrighted by its original authors. You need to use a non-copyrighted picture or obtain permission from the original author if you really have to use the copyrighted picture. Please refer here if you're not familiar with what I was talking about.

• You need to learn to structure your article properly. Small-sized pictures should be aligned to either right or left to make it looks proper. It seems irrelevant but it's quite relevant since it will motivate your readers to read further down, instead of clicking the "back" button. If you are unfamiliar with Markdown Editing, click here to learn more.

If you have any problem regarding STEM-related articles, you can join steemSTEM Discord Channel and we will be glad to assist you.