My condolences, Lana.
I like the dress too. No belt is my preference. Dark shoes will work with your dark eyewear and a dark bag. Grey is good too.
Personally, and FWIW, I've had the following experiences, so I think light and bright shoes can work too. It depends on the deceased, the culture, and the environmental norm. And of course, what you think feels right.
22 years ago I wore red shoes and bag with a black pinstripe pants suit to my Mum's funeral in Cape Town, SA. She loved red shoes and bags, so that's why. Apart from our family who was dressed formally - but not black necessarily - people at the funeral were dressed in regular clothes. My Mum LOVED flowers, so many wore floral dresses and tops, across all colours.
In 2019, I wore a dressy navy shirt dress and red shoes to my Mum in Law's funeral in Durban, SA. My MIL loved red, although yellow was her favourite colour. Some people wore yellow to the funeral because of that. If I had yellow shoes, I'd have worn them. Apart from a few dressy people across all palettes - everyone was extremely casual. All colours of the rainbow.
To my Dad's funeral last year in the Netherlands, I wore the same navy shirt dress, with light blue shoes and bag. Only 15 people at the funeral - COVID - and all dressed up. But not necessarily dark. My one aunt wore florals. My other black and white. Hubs Greg and I were in navy. Cousins and friends in shades of blue. My brother in grey and black.
Here is the dress, the bag and shoes. For my Father in Law's funeral in a few weeks in South Africa too, I will wear the same. My navy shirt dress has become my funeral dress.