>>1871207I can't blame you as much, considering you worked on this image from a fairly garbage vector (Use IQDB to get the original for future images), but here are some things.
Most of the hair lacks curvature at the tips. You want hair to be bending in a certain direction at all times. Bend the handles more at those tips to achieve that. You also simplified much of the longer hair. Go the extra mile to make it, and bend the curves properly to get flowing hair. The same applies to the fur on the tail. Use the least amount of nodes for this, preferably starting with only the nodes at the tips. Do not overextend the handles where they become flat at the tips. Get the tips shaped properly, and then add a node in between, if needed.
You have many bugs and odd issues elsewhere. The hair on the right is clipped where it goes over other hair (might be a compound path error), and you have weird rounded splotches around two tips of hair on the bottom left and right.
I went ahead and did my own version since I like them animal ears, so use it as a reference for the hair and fur.
>>1871228Follow the tutorial and do it proper. The way you did it is fuzzy, inconsistent, and lumpy. Doing it through Ai will create an infinitely better result.
>>1871316Uploading to Imgur is fine so long as you stay under the 5MB limit. It only converts it to JPG if you go above that. It is very rare that a minimalism image will ever get that high. He can't export at a higher resolution since he did it in Photoshop, and thus made a raster.