Hey welcome to Steem. There is a great photography scene here on Steem lots of contests and all sorts of content being shared.

One page I reccomend checking out is @czechglobalhosts they run some wicked competitions!

I have been writing a few articles to help out newbies. Feel free to come and check them out:

https://steemit.com/steemit/@conradt/should-you-be-using-an-upvote-bot-an-introduction-guide-for-minnows

https://steemit.com/steemit/@conradt/the-complete-newbies-guide-to-curation-rewards

https://steemit.com/steemit/@conradt/things-i-wish-i-knew-when-i-joined-steemit

https://steemit.com/steemit/@conradt/whats-the-difference-between-steem-steem-power-sp-and-steem-dollars-sbd