Instead of using that watercolour brush, I've found the Rosemary Ivory brushes to be just as good. They're really soft and nice. I only have a #3 filbert but would like to get some more of these ones... soft hairs but are still fairly firm and have nice spring to them.
I like it... Kind of a fun surreal vibe to it. I get the impression you weren't going for high realism. It's also colourful but relaxing to look at. I also noticed what roxy noticed right away before seeing his comment