just had a look at your link...looks ace!
yes i know what you mean, i feel my cakes are of a completely different design style to many i have seen in the area, so i get the feeling that if you like my style of work, you pay for it! I don't think these people even consider how much time and effort, let alone your own costs to actually make the cake in the first place, amount to! Ive seriously undercut myself (but just more than covered all materials etc) a few times and if i came to a few tricky parts on the cakes, or a skill i hadn't done before i cursed myself for not charging a 'proper' price! I've a Christening cake going out and i worked all materials extras and a realistic time scale and they accepted my price, even though this probably would have been double what i would have had the nerve to charge a few weeks back!

Up your prices! If they don't know your relatively new to cake decorated they would never know with your skills! Don't undersell yourself you have a natural talent and deserve to be compensated handsomely for it!
I'm doing the same sort of thing at the beginning where i sold them for just above cost price, or double the ingredients, ive just moved onto phase to of understanding my worth. But i know i'll be alot slower at this point so i've put my hourly rate at a lower cost (£

then when my skills confidence and speed grows, so will my hourly rate (just as it would in any workplace).
I read on a thread Duff Goldman charges a minimum order fee of $1000!, yes please!