@CoastOfXmasPast , it's still a bit early in the year for lots of choice in office-suitable smart summer dresses. There's a lot of interim navy out there!
Are there any colours you especially favour that you know suit you? Are florals totally out? Embroidery (even if just a trim/detail)? What about graphic prints? Or is it just dresses in a single colour that you'd like?
I do think the dresses you posted are rather dated, OP - it's a combination of both colour & shape (especially the blue!). But what I personally would dislike most about wearing them is that they're fully lined AND 100% polyester!! Even being sleeveless, I'd find them unbearable on a hot day! And even if there's good air con in your office, what about travel there & back?
Are all your shoes & other nude/white/black/tan/navy? As I like adding colour with my lipstick, bags/shoes, belts - sometimes a vintage Jacqmar silk scarf. I have lots of green/red/metallic footwear & bags alongside the blacks & navies!
Some dress ideas forthcoming ...