Good photos, I experiment a lot too. I like the micro 4/3 cameras because they have a smaller sensor, so you can free lens or use a tilt adapter with old 35mm lenses. There's some interesting CCTV camera lenses on Amazon and Ebay that are cheap, here's one example https://robinwong.blogspot.co.uk/2012/08/for-love-of-swirly-bokeh.html
I want to buy Lensbaby, that will be my lens soon. Thank you!