Here's mine
THREE HEAVENLY KINGS - What was Yoshi thinking with these desgins? They don't look intimidating at all - they look like lions! I hate everything about these guys but their designs are the worst!
No picture because none with all three yet and hard to find.
MASASHIGE - I don't think his design had much facial expression to it, so it was kinda lame.
https://imgur.com/a/XOi6bx8
MASAMUNE - Why has he got hair on top of fur? Why does he wear a scarf and gaiters? The other dogs in his clan don't so why does he? Are you fighting dogs or are you going to a fashion show?
https://imgur.com/a/7t0QK0F
TENKA - everything about this characters confuses me - why does he have a fish face? Was it from the toxic fumes he was supposedly surrounded by?
https://imgur.com/a/Z6nPcvd
UNSAI - too hairy and such weird eyes
https://imgur.com/a/wn6bHgK
PUPPY BON - those eyes... those creepy bloated eyes! So glad he outgrew them! They looked like eyes from a frog!
https://imgur.com/a/tVS1KFk
(Though I will admit, the three heavenly kings have started to look bad since Yoshi's gotten lazy with drawing their fur.) George and Masamune are among my favorites design-wise. Tenka is weird but he is kind of a weird character so its oddly fitting.
Weed has a pretty boring design for a protagonist, especially since he is surrounded by characters with more interesting face markings and shapes. At least his dad has scars lol. I'm not counting the fact Yoshi colors him blue because that's totally normal in Ginga and fairly common. This of course carries over to Sirius who has the exact same design, so much so you can't always tell them apart. I think all of the bearhounds after Gin have serious design issue. Riki and Gin looked different in GNG of course, but once you get to GDW all bearhounds are just recolors. 
I know bright blue is a fairly common dog color in the Gingaverse but for some reason it doesn't work at all with him.
