Everything in this collection would work for you. the Blue Begonia Print Dress has a nice line and if you want to wear a heel try a WEDGE first just to see how comfortable you can manage. I will be pulling different looks through the week.
I also like separates since you can make the pieces work with other items; look at the black lace sleeveless top and the simple black skirt, which would also look great with black straight leg pants.