Posts without pictures will hardly attract the attention, and posts with own picture will even do better.
The advice comes from one of the most successful authors on Steemit 
Want To Be A Steemillionaire? Here Are The Crucial Things To Do For Newbies on Steemit
https://steemit.com/steemit/@dollarvigilante/want-to-be-a-steemillionaire-here-are-the-crucial-things-to-do-for-newbies-on-steemit
You cannot directly load your own images into a post on steemit. Instead you need to host them on the internet and then enter a link to your image in your post.
Go to Img Safe Website:
Register as a new user. It is free
Then login with your email and password
After your login you can now upload your images
For each of the images you need to click on the upload button
Now you are ready to submit a new post on Steemit:
Go to My Images on Img Safe and click on the image you want to add to your post:
My mission is to upvote your lifetime dreams:
https://steemit.com/introduceyourself/@steempowerwhale/i-am-steempowerwhale-and-i-am-here-to-upvote-your-lifetime-dreams
