Help with quadruped rig

Hi:

I’m relatively new to 3d & I’m learning through practice and tutorials.

I’m trying to build a simple puppy character that I want to use in a few different poses.

I have viewed many rigging tutorials but I still can’t get my rig to move the model in the way that I want.

I am trying to make the puppy look like it’s sitting.
(I used rigify wolf and a cat tutorial https://www.blendernation.com/2019/07/02/rigging-animals-with-rigify-in-blender-2-80/)

I think the problem with mine is how the hip is working? Or maybe I have the pelvis bones placed wrong?

I’d be grateful for help.

Also, I’ve seen Nathan Vegdahl’s ‘Humane Rigging’ recommended in old posts. Is that information still relevant and useful for working in blender 2.8?

Cheers!

Link to: the blend
http://www.michellecaldwell.com/extras/dogGSD_09_rig2_6_e.blend