Wedding dresses with long sleeves:
https://www.brides.com/gallery/wedding-dresses-long-sleeves-trends-2013-fall
I like #2 Tadashi Shoji Esmaralda
#3 Azazie Marlin BG, is similar to Meghan's wedding dress
#16 Vera Wang Bell Sleeves Lace
#24 Watters Lucretia (with a less revealing top design, this is pretty)
#30 Muse by Berta... Similar to 24, but longer sleeves and a plunging back
#33 Allure Bridals -- a nice design
#34 Monique Lhuillier Bliss -- a very pretty design, but top is too revealing
#35 Monique Lhuillier Albertine -- very pretty, but with a less plunging neckline
#42 Reem Acra seems inspired by Meghan's wedding dress, but this scoop neckline is too plain with the dress' styling. Meghan's veil enhanced the classic lines of her dress
#43 Rebecca Ingram Rina -- very pretty, but without the too revealing neckline
#46 Georges Hobeika Look 6 Classically pretty, but without the plunging neckline
#57 Savannah Miller Gwendolyn (also inspired by Meghan's wedding dress)
#60 Elizabeth Fillmore Water Lily -- very pretty, but maybe not for Beatrice
#62 Stella McCartney -- an interesting back, but not for Beatrice
#63 Zuhair Murad Raphaelle -- very pretty but shoulders are too bared
#67 Isabelle Armstrong Louise -- another Meghan wedding dress inspired design
At the bottom of the page, there's a link to halter-design wedding dresses inspired by Meghan's Stella McCartney after-party dress.