Help needed please!

[Lolly86]

I've got a trip to the west end planned for next week with the DH, a rare date day/night as DD is at my DMs.
I'm looking for something to wear ideally a dress that I can wear comfortably during the day and then suitable for the theatre in the evening. Needs to be cheap as poss as on a tight budget. I'm 5'8, size 16 and not a heel wearer so would need to go with flats. Asking to much?

cute floral
navy print
draped turquoise
black wrap
cream spotted
orange
striped

All £20 or less and would look great with a denim or leather jacket and flat pumps or converse-style trainers What are you going to see?

Les mis! I'm so excited! Thanks ks.for the suggestions I'll have a look through