Every cake is bespoke and individual therefor the price can vary depending on overall size and design. 

The most cost effective style of cake is a semi naked cake.

A three tier ( feed approx 90-100)£310

A four tier (feed approx 120) £350

A three tier iced cake with sugar flowers from £420

A four tier from £500

Im more than happy to give a approximate price. Please send me any ideas you have and ill get back to you ASAP