Spider Man Cake

I made this Spider Man Cake for a online contest.  Hope that this cake can help me get into the next round although only 25 people will be selected in whole of Singapore.
I am using chocolate sponge cake as base.

Recipe adapted from Alex Goh Baking Book so due to copy right infringement I cannot type out the recipe.

You can use any sponge cake recipe of your choice.

Note: My cake is 6" size and I used frosty whip powder for frosting this cake. For colour, I used Wilton red colouring and charcoal powder for black colour.