Prissy is a combo word Paul, taking the words 'Pretty' and 'Sissy' and putting them together to make a word which means pretty but a bit too sweet.
I don't think it is prissy but I do know what Charlotte means and she is only talking about the border, not the flowers. I think the colours of the flower are lovely, the angle is excellent and the lighting good so all in all works great. For me I would go with the same colour frame but just a thin line and not so OTT. No need as the flowers hold the attention and the frame should complement, not be something we look at, if that makes sense.
Lovely shot Paul, like it
Cheers,
Rob