I used 2 9x 13 cakes and stacked them on top of each other. I used a thin layer of frosting between them. I printed out a cute frog picture from my computer and used it to pipe a gel tracing on top of the cake.
After frosting the frog cake with white buttercream, I traced the frog picture with the piping gel and then used a star tip to fill in the colors.
I traced the entire picture in black and added lily pads. I used frog candles to add to the effect.