In a mixing bowl combine your room temp butter, and your sugar. Mix for about 5 minutes. Add eggs one at a time beating after each egg. Add your warm water, vanilla and cinnamon. Mix...Then add your cake flour, baking powder and salt.
Beat for 15 minutes till it becomes shiny. Grease two round cake pans. Split the batter between both pans. Preheat oven to 350. Put the cakes in the oven for about half hour but check it....When it becomes golden brown and stick a tooth pick in it. If it comes out clean it's done. Take them out and let them cool.
Take whipping cream put it in a bowl with your sugar and vanilla. Whip till it makes stiff peaks.
Once they have cooled off you'll want to take them out of their pan. You'll need to make the cakes each into two cakes. On a flat dish lay the bottom piece out very carefully. Spread whip cream on it and top with some of your diced strawberries.
Take the rest of your whip cream and top the cake and around the sides with the whip cream. Which is WHY I said STIFF...:-)
Once you have the cake all pretty and white then you can decorate the top with strawberries. Also top with the Tea Berries if you wish. Refrigerate till you wanna eat it :-)