These are really simple A6 notecards that you can use as it is - or layer up one of the additional motifs for added interest.

For this one print:-

The Wisteria notecard onto quality white card
The Wisteria notecard motifs onto quality white card (optional)

To make the card:-

Crease the card then cut it out using a craft knife and ruler.

Fold it at the crease, matching the opposite corners as you go.

Layer up one of the additional motifs from the notecard motifs sheet (if required) using sticky pads.

Add your chosen greeting with double-sided tape or sticky pads.