It took me months to figure out how to post pictures here, there are some pretty great resources in the Help/FAQ section,
https://www.quiltingboard.com/qb-help-center-f27/
For me it mostly is that I use a "vintage" digital camera and my picture file sizes were too large, I drag them from my file manager to this site:
https://www.reduceimages.com
And use their defaults to get my pictures to an acceptable file size. Then I download it from that site.
Here, some people can get their paper clip icon to work -- not me, so I type in my reply and then I hit the "Go Advanced" button. From there I find the option to "Manage Attachments" (it is in the middle and doesn't stand out), and then I use the browse button to go to my download folder (it's a preset option) which is where those reduced pictures are. Then (I'm almost ashamed at how long it took me to figure out with the new board design) you have to change the size of the window so you see the "Upload" button at the far right, window comes out long and narrow, you want it wide and narrow...
In some of the steps I have to do a CTRL Click to get stuff to come up. I don't think about it when I do it.
Here's some pictures of the blocks. They are consistent with the yellow tulips, the red squares, and the brown box but the inner design is different, about 6 different blocks for a total of 12 I think. I'm cheap and so got them for under $5, again, the brown is a true 1970s vintage fabric and the red is modern but I think about the right color.