5 Under £50: Royal Garden Party dresses from Oasis

Today's Five dresses Under £50 for the Royal Garden Party are from Oasis. Floral seems to be the over-riding theme! What do you think of these picks?

Clockwise from top left: Round neck shift dress; Lauren floral dress; Oriental slinky dress; Chevron striped dress; and Dragonfly print tunic. 

Which is your favourite? Which do you think is the most appropriate for a date with Her Majesty?