M&S summer dresses/ clothes recs

[TooMatchaMatcha]

I have some birthday vouchers and a trip to Seville in 5 days. I'm a size 8, 5'3 and 44. What should I buy? The vouchers are about £50 but I'm happy to top up.

I saw this at the weekend which I might go back for. The light green was slightly more blue than the image, I think. I loved it, especially as it pissed me off that the same version of it in a top only has a plain back without the gathering detail!

www.marksandspencer.com/pure-cotton-shirred-sleeveless-midi-dress/p/clp60789313?intid=mobile_app_pdp_share