Always feel free to ask away! I'll try to answer in order the best I know how, but I don't speak on behalf of everyone. For pictures, I would recommend at least a couple of sentences. No need to go into a huge blog, but say you post one of those gorgeous cakes of yours. I would plug at least a couple of sentences about what's in it, why you're proud of it, why you want to share it. It doesnt have to be complicated, and can help bring a little more life to the post. For your art, how long did it take, what inspired you to do it? Little details can go a long way.

As for numbering, that's a personal choice. If you have a series that you want to provide people the opportunity to follow or go back on, then it can help, but it's far from required. For general posts it's a toss-up, but if you have an idea that spans multiple articles to fully explain, it cant hurt. There's no requirements for it in any of the tags though.

Lastly, DONT BE INTIMIDATED! I'm telling you, just between your cakes, gardening, and random artbits you have SO MUCH to bring to the platform, and that's not even including your nights on the town, crazy selfies, hikes, and philosophical thoughts. You have a lot to bring to the world, dont for a second let this place scare you. Forget about the money, post what you love, and you'll do fine.