Hi there, this is my first critique so if I'm unfair or doing it wrong, let me know!
Also: I'm not a native english speaker, so there may be grammar and spelling mistakes - sorry!
By the way, I chose not only to rate this piece, but also your improvement and dedication to your art. You are one year on DA, but your first piece was submitted on April of this year. Since then you improved incredibly fast and put out 100 digital artworks at least. That is why I chose to rate Technique and Impact each a 1/2 star better than I would normally.
Vision: If I look at your this work I don't really see a 'deep' meaning. That's not really a bad thing, not every artwork needs to make you question your life. You've drawn a very cute doggo/fursona and that NEEDs to be appreciated because doggos need to be appreciated in general.
Originality: I gave you 3 stars on that, because despite being good executed and me wanting to cuddle him/her the originality is the weak point of this artwork. I often see art like this and despite being well made, I couldn't tell if this were your artwork or done by a other artist with a similar style. That is not a bad thing - again - but I think if you would chose a different approach for your art - like more realism instead of comic influences I think this work would be more interesting and more memorable.
Technique: I love the shape and the detailed fur of the outlines, especially on the neck and face! But the execution of the lining itself is a bit messy over all. If you look at his/her paws the lining is irregular and the left one on the back doesn't really look natural if compared to the one next to it. Same with the left one in front.
While the coloring is good okay over all, I have to say that the colored parts of the fur looks off. I would have loved to see more details on the orange/black and grey parts. It looks too flat if compared to the furry outlines. You can see that very well on his/her tail.
I also want to mention, that the colors you used for the shading and the technique are wonderful and very refreshing too see on DA. You used flat shading and also a more reddish color for the shaded parts. That is awesome when working with your style! Maybe try working with a tiny little bit of blending and sharper edges for your shadows. I think that would look good too.
Impact: What do I have to say? Hella cute doggo, I want to cuddle him/her and tell them she/he is a good boy/girl. Your artwork looks well without very prominent mistakes and your learning process was amazingly fast. Despite this artwork isn't thaaat original you deserve 5 stars for Impact.
My final words and a bit of advise: You are obviously very talented, but I would like to see you trying different styles and keep practicing humans and anthros. You learned drawing animals very fast, so I think you could improve that too in a record time. You seem very dedicated and eager to improve so I think you will do that anyway
Hope this was fair and I wish you nice holidays!