1)Don't over mix the batter, else it may get rubbery.
2)Never over bake the cakes. The cakes are thin so it requires very low time to bake.
3)Every oven varies. So the baking temperature varies accordingly.
4)I used whipping cream powder, you can use frozen non dairy whipping cream as well.
5)If you are using whipping cream, add some icing sugar and vanilla and whip till stiff.
6)Use best quality natural food colours.
7)Always keep the cream cold. so it is easy and pipeable.
8)If the cream gets liquid after adding food colour, whip it again for few minutes and then use.
9)Use gel food colour for best result.
10)You can decorate the cake as your wish.
11)Soak the cake in syrup to keep the cake moist and soft.