My First idea was to just have a different illustrated letter per card, but I'm not sure if that would be a bit plain. the other design is this:
It needs a few tweaks as it's just a rough design but I like that it's got my favourite frog prince on it.
I've also started playing around with designs for cards to have at my final MA exhibition. I'm not sure about this one, though I like the colour. I imagine I'll have produced a better image by the time my exhibition comes up.
It's unexpectedly difficult designing your own promotion material, I have a tendency to get a bit precious and perfectionist about it all!