Looking good! I grow M. deliciosa, M. deliciosa albovariegata, & M. deliciosa borsigiana. All three are pretty easy to grow in my warm-temperate climate. They don't seem to be picky about soil type, I just try to make sure it's well-draining. If you give them something sturdy to climb on, you will really see an explosion in leaf size!!
Mine get mostly shade with some filtered sun, but in the past, I've grown M. deliciosa in full sun with no problem. I've always given the variegated ones at least part shade, but in our brutal summers, even the most sun loving plants appreciate a little shade from the intense midday sun.
Here's a pic from last year of one of my M. deliciosa albovariegata from last year. I think this leaf is about 2' across. I'm out of town now, but I'll get a current pic when I get home.
