Laurel isn't purebred, she is an F1b backcross Chipin (75% Chi, 25% MinPin), but she very much has the Chi personality so this is the most obvious place for me to come for breed-specific advice.
I would expect a Jack Russell/Chi mix to be slightly bigger and sturdier, like Laurel's bit of MinPin blood, and also to have some of that full on fearless terrier character--a fiesty protector rather than a shrinking violet.
Of course recessive genes are funny things. Laurel was one of four littermates who all looked and acted completely different. The best advice I have read about crossbreeds is that you shouldn't adopt one unless you are prepared to deal with the negatives of both breeds.
Nobody has any right to judge you. We all grieve differently. The advice to choose a different breed probably comes from a well-meaning friend who doesn't understand dogs. Of course you aren't trying to replace your babies, you've just found your breed!
My mom loved her Shepherd, but once she was loved by her first Sheltie, that was it--the retirement community may wish I could talk her into a Chi or other smaller breed, but Mom hasn't wanted "a dog" since she was in her 30s, she is a lifelong breeder, trainer, and exhibitor of Shetland Sheepdogs and she never would have bought that condo if she hadn't been told that she could keep BOTH her dream Sheltie AND her rescue Sheltie.
I don't know if I'm the same way about Chis yet, but I know a lot of people are and there are some old posts I've been reading from someone with a Chi/Jack Russel mix in their siggie. I'll edit with a link if I remember so you can see one of many ways this mix may look.
As for the pictures....my best advice would be "don't" because of all the metadata in our pictures and other privacy concerns about the internet these days. I run Debian (Gnu/Linux) and don't even own a smartphone, so I'm in the same boat as Susan but maybe this will help:
To share a picture you saw online using Firefox, right-click the picture and select "copy image location". Then type in the following tags, leaving out the asterisks:
If you want to use an image from your camera, you will need to upload it to a photo hosting site first. Photobucket is popular, but then again so is Facebook; popularity doesn't necessarily mean it's a good or safe place to store your personal information.
Here are a bunch of pictures to enjoy anyway: