I know I am a sick bastard and all that , but all I can think of when I see such plump and shiny yukkuris is: "Shit , I'd like to have some of that tasty stuff on my platter right now!"
There's just something inherently abusable about the yukkuri he draws. I've tried to replicate his style to add/remove things and see what it is that makes them like that, but I couldn't figure it out.
I think tora did a deconstruct or something like that on the google groups a long time ago. It might have applied to cute-sy yukkuri styles as a whole, but it was pretty accurate.