If you would like to do an intro post look here: https://www.steemithelp.net/#/verification/ also you can find some examples on #introduceyourself. You can leave me a comment with the link when you have done so. Especially when you are just starting, this helps people get to know you and they can connect better. but it is optional.

Also for pictures, it is good to state sources so people won't refrain from upvoting. For instance, it is free to reuse and from pixabay, you can simply state at the end of the post that images are from pixabay etc