How to create a good photography post and get an upvote?
It is important that you take your time! You will gain followers by producing good quality content, not by increasing quantity.
Title your post well.
Use photographs of the highest possible quality.
It is important to write some text alongside your photograph/s. Provide detailed descriptions of your photographs and some background story. Also provide information about your camera and its settings. It allows people to learn much more.
Format the text. By centering images and text, using bolds, italics, making text larger and presenting your links attractively. For a comprehensive guide of formatting in markdown check out this post by @thecryptofiend on Markdown for Beginners
Use your tags wisely.