Hey Héctor!
Welcome to Steemit! We're glad to have you here. This is a great website to post photography; I've seen pretty alarming results from photographers here. There's a page that has a rewards system that is useful if you're going to post a lot of photos. You can learn the rules here
dTube is a great place to post videos. I've heard there's also a Steemit-affiliated audio site, as well. There are a lot of resources here :)
I've made a few posts with the aim to help newer users. Feel free to check them out if you want!
Welcome! :)
Thank you very much! I'll check it out tomorrow for sure! I am still thinking where to post the photos and what resolution etc. I'll be back soon!