Recommendations for a basic blogging theme for a beginner?

I’m looking to start my first ever WordPress blog – I looked at an introductory YouTube video, and it all looks fairly easy to set up, and extremely flexible too.

Almost too flexible, as I really don’t know where to start with the huge number of themes to choose from. So perhaps some kind person can recommend something simple for me to start with?

What I have in mind is a fairly basic blog, where I would enter a post every few days, mostly with several pictures attached. My main theme would be computer graphics, so it would probably be very handy to be able to use keywords or some similar mechanism to group posts by project

If it matters, I tend to like using a black background. Also as a graphics type person, I’ll very probably want to replace banner images and so forth with my own.

I figure that if I start with something broadly appropriate I’ll learn enough from working with that to make in informed choice a little bit later.

So, any recommendations for a suitableth3eme that’s easy for a beginner to work with?

Thanks,
Nick