Adding flowers to my cards always makes them feel more feminine and it is something I love to do.
These are quite low so will no interrupt them going into an envelope and they look really pretty with the stencilling behind them.
The gilding flakes I have used are some that I have had for a long time and because you use so little of them each time they seem to last for ages.
They come in many colours and combinations and they are not expensive but they are messy and do get everywhere.