Not a big fan of that new model. With some more work it could be much better imo. You probably won't care about my opinion but I do just want to help. So I'll try to explain how this could be personally imo better. I do understand modeling is hard work but surely the changes I'm about to suggest are not impossible for you if you agree with any of them.
The shape of the eyes are awkward. they just have a bad flow to them. There are of course different styles for his eyes you can do but the overall-look of these just don't artistically look good atm. This will be a bit hard to explain since I don't know which artistic style you want for this model but if I was going take a guess from a older picture of yours...
I'd say you modeled his eyes to big & they should have a more sideways oval shape & look sharper shaped overall, they should curve more into his muzzle instead of going down & hitting the outside edge oh his cheeks as much.
His muzzle is to small, It also should come out from his head more. his face looks to sunken in atm.
The mouth needs to be lower.
His nose needs to be bigger.
The belly patch needs to be a bit smaller and higher up on his body.
The arms are a bit to skinny & to long.
His legs need to be more noodly shaped.
The torso needs to be a bit longer or just bigger perhaps. Not quite sure, it atm just looks really awkward to me.
Not a fan of his quills atm, Looking from the art the quills should be shorter with his bottom ones especially so. His top spike should point upwards more. they all also need a more plumper & sharper shape to them at the same time.
his ears should be less round shaped.
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Well anyways. I hope my opinions can help you in someway dude.