Oh my. Looks like a lot of love in making that cake. I’m not good at baking. Lord knows I’ve tried. I can bake decent cupcakes, but never in my life have conquered the pie crust.
I think I’m probably better at pie crust than cakes.
Don’t use a food processor - in my experience, it tends to just turn it to paste. You have to do the work of cutting-in the shortening with two knives or a pastry blender. And you have to keep everything very cold - the water you add should be added little by little, to see how it goes; and it should be ice water.
Some have said that adding a little vodka helps; I haven’t tried that.