You could start a thread on it here if you don't want to start a blog. Pretty simple to just do a chronology with photos and descriptions as your work progresses.
But, if you want it to be your own content exclusively without replies mixed in, a blog is the way to go vs a forum or bulletin board. There are lots of choices and things to consider when it comes to blogging, the platform you choose being the first one. There are also many articles and "how to's" on the subject. Do a web search for "blogging basics" or "how to start a blog" or similar.
"You can't buy happiness, but you can buy an RV. And that is pretty close."