First, the inspiration:

Which isn't bad, I guess, if you've got a Brave Heart kind of vibe going for your wedding. Certainly it's executed well.
Anyway, here is what the paid, "professional" baker provided:

Erm.
[glancing between the two photos]
It’s like seeing double, isn’t it? I mean, sure, the second one is collapsed in on itself, slumped over to one side, and channeling a bit more Bob Marley than William Wallace, but besides all that I’d say the decorator was bang on, wouldn’t you? Ok, ok, if you wanted to get picky about it, I guess that crack in the bottom – the one you can see the cake through? – that probably should have been iced over. Oh, and the red stripe might look a little nicer if it were one continuous line – or for that matter, if the line were straight. (Perhaps a little too much Red Stripe was consumed before icing the red stripe, eh? Eh? Come on, that was freakin’ hilarious, people: Bob Marley? Jamaican beer? Booya!)
Come to think of it, maybe that mass of squiggles in the mid section isn’t the best example of plaid I’ve ever seen, either. [tilting head to one side] Huh. Yeah. Ok, Summer, you got me: I can sort of see why the bride sued.