Oh I like them!
I am over 40... ehemmmm, cough cough... The dress is pretty although I personally wouldn't wear a belt like that anymore. ... just not comfortable. I like boat neck. Very pretty fabric and a jersey would be very comfy and very flexible.
Trousers... I love the short look. Pleats are not big with me anymore ) but in case they are back I may be behind the fashion a bit. Linen is luxe in my mind and I do love pockets!!!
I don't mind not having head or feet because I see many cutoffs. Maybe check some of the blogs and other stores that are selling clothing and check how they make their modeled items stand out.
I think you have some classic pieces there.
Here's an idea... what about doing some mix and match outfits... What about adding a white or black or red knit jacket to pull it all together. Add some simple patterned tanks to go with the shorts. Then link your listings together by mentioning a co-ordinating top or sweater.
Working/ career "older women" tend to buy "outfits" so that it is easier to get dressed in the morning.
Anyways.... back to your original question.... you have some lovely items there. Clearly target your buyer when you are promoting them.
Hope that helps