Thanks for all the kind remarks, I don't know any other scrollers near me so I have no feedback and very little to compare my work to. I tend to be my own worst critic.
When I look at something I have completed, I have to remind myself that very few people look at something trying to spot flaws (although I know some people like that !!). It is natural though, when you are also a scroller, to look for details that many people might not even notice.