Preheat your oven to 425°F (220°C) and line a pizza stone or baking sheet with parchment paper.
In a large mixing bowl, whisk together almond flour, coconut flour, baking powder, garlic powder, and salt.
Add eggs, warm water, and olive oil to the dry ingredients. Mix until a dough forms.
Place the dough between two pieces of parchment paper and roll out to your desired thickness for a 12-inch pizza base.
Remove the top parchment paper and transfer the bottom sheet with the dough onto the prepared pizza stone or baking sheet.
Bake the crust for 8-10 minutes, or until it begins to turn golden brown.
Remove the crust from the oven and spread the tomato sauce evenly over the surface, leaving a small border around the edges.
Sprinkle the shredded mozzarella cheese over the sauce, and then arrange the tomato slices on top of the cheese.
Season with dried oregano, dried basil, salt, and pepper, to taste.
Return the pizza to the oven and bake for an additional 10-12 minutes, or until the cheese is bubbly and the edges are crisp.
Garnish with fresh basil leaves and a drizzle of olive oil before slicing and serving.