Joining in on the welcome and that we love pictures here! As long as it is your own work/photo you can post it even if someone else designed it. It's nice when you attribute it if there is a source. The help section has some great threads on posting pictures, our boards just changed formats and I think most issues have been discovered.
The moderators here are good at copyright issues and there are a couple of people here (not just me) who just find the whole subject fascinating. Although I worked most of my career primarily with engineers, I started out in advertising and had a lot of stuff to learn about trademarks and such. We have some threads on the subject and it is always interesting to hear both sides, because there are always at least two sides to every argument.