Blueberry Muffins

My first attempt at Blueberry muffins. Only I didn't have any muffin cases so used normal cake cases which I don't think work as well. Also my oven isnt a fan oven and temperature is sometimes strange, which means they have to be left in for longer, so often come out a bit hard.
But still tasty. I'm pleased with the result, and I know what to work on next.