In a large mixing bowl, or a stand mixer fitted with the whisk attachment, add the eggs. Beat on medium high for 3-4 minutes until they are pale yellow and fluffy. Mix in the avocado oil, honey, vanilla extract, lemon juice, and almond milk. Beat to combine until the honey is well-distributed. Stir in the baking soda and allow the mixture to sit for about 2 minutes.
In a medium mixing bowl, whisk together the almond flour, tapioca flour, baking powder, salt, and ¾ of the powdered strawberries. Working in increments, slowly add the dry ingredients to the wet ingredients, scraping the sides down with each addition. Mix for 1-2 minutes until everything is well combined. Pour the batter into the prepared baking pan and transfer to the oven. Bake until the top is golden brown and when pricked with a cake tester it comes out clean, about 25-35 minutes depending on yor oven. If the top starts to get overly browned, place a sheet of foil over the top.
Remove from the oven and use the parchment sling to carefully transfer the cake to a wire rack until completely cooled. Once cooled, carefully flip over so that the bottom of the cake is now the top. This helps with smoother icing.