This link will help you see introduction tagged posts:
https://steemit.com/created/introduction

Everytime you post a photo, you write underneath if you took the photo or you cite who took the photo
See these people and how they do it:
@marcoteixeira
@axeman-appics pro photograph
@sultan-aceh
@soulsdetour

Some communities to join for photography:
@xpilar @worldofxpilar
@steemladies

You just tap the word Steemit at the top and down comes the community list. Which will default to All Posts.
Tap it again and the rest of the communities will show.

There's wakeupkitty
dreamsteem

All sorts.

Remember to do your introduction post. It makes a big difference on how much you will get on rewards.

Again welcome to Steemit another American made Social company by @ned and @dantheman which was forced to be sold to JustinSun of Singapore by elected officials of the state of New York along poliniex.com.

They don't want crypto or American companies in New York: it's true but it is funny that it's true.