If you have set up Collections then I'd recommend that be your landing page by default. It's the IMAGE people are after, so help them find that the easiest way, and I think Collections does that by narrowing it down to a specific theme or subject.
As a photographer whose work covers various topics, regions, bw v color, panographic v conventional shapes it makes far more sense to send people into collections rather then into a pile of photographs. And of course as a photographer I'm able to produce at a far higher rate then a painter/pen and ink artist etc so while they may upload say two dozen images a year for example, I may produce that in an afternoon.
I go for Collections and especially for promoting, you want to show as much as you can in any single visit. Promote a collection from your premium AW site via the 3 bars top left, that shows your latest upload first.
I've tired both and could not tell any difference in views or sales. The old expression... six of one, half a dozen of the other. I usually am optioned for "shop" because I think I'm still improving in my work and I like the most recent images to be what is first seen. The customer (if serious) can figure out they can go to collections if they choose.
I've seen in discussion threads many times when a question is asked, "What is your favorite work?" and the artist replies, "What I'm doing now", or "My most recent", etc.
It's also more convenient for myself, when I manage images or when I'm doing a series of a subject and want to quickly find my other recent images to copy search tags or see titles that I don't want to duplicate or whatever.
I also believe most potential clients "search" via internet search words rather than find your gallery by happenstance and decide to browse through (in my case), thousands of images.
Although I'm new here I prefer the look of collections as my home page. It keeps everything tidy for me to catalogue my images and makes it easier for potential customers to go to a particular subject without having to wade through subjects there're not interested in.
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