I don't know about those pens you already won a prize/award for ... your question would be best directed to one of the contest-managing senior members here ... perhaps Jeff or mredburn could answer ... just send a Private Message (PM) to one of them. . A PM would get their attention in case they are not aware of this thread.
Posting pictures here is a little bit quirky but I am sure you will figure it out. Start by clicking on "Photos" at the top in the dark blue bar. . At one point, when you are uploading a picture to the Gallery you need to enter a name for the picture on two separate lines, as I recall.
You first click Photos, then click Upload, and then select a Category (for that choose Member Photo Albums). . There is a little more to it than that. . Your photo size has to be below a certain pixel limit.
Once you have photos in your Album (automatically created during the above process), you can display a photo when you are entering the text for your post by clicking on an obscure little box in the lower right corner of your text-entering screen.
There are other ways to do it but that is the general procedure I use. . One other way is to link to a cloud.