Looking good so far.
To post pictures, you'll need a direct image link. Once they're uploaded, you can either scroll down to the bottom of the image page, and copy the BBCode option for the full image, or you can right click on the image... Where it may give you the option Copy Image Location
, click it.
Once you've got the image link, it should look something like this:https://i.ibb.co/FBGNzL8/20200818-222149.jpg
-It should end in .jpg, .bmp, .png., or .gif (if it's animated). If it doesn't, the image tags may not recognise it.
Next, you need to add some image tags to it, like so:
(Minus the *s)
Which should display it like this: