Aye! I love your art its so good! (for a starter I presume) I really like your style (Digital and traditional) and I hope your DA account grows!
Though- here are some things you should work on to make your drawings even better!
1. Thicken the ears of your fox/cat/animal to not make it look like a triangle coming out of the head.
Here's an example.
On the left we have a example of what you could do to improve in red we have the ears they are much thicker and have a area where the inside is sketched out on the right we have something you might do, dont you see how different it is? Im not saying your art is bad but just trying to help to make it even better! (Not saying that your art is bad- its actually amazing)
I don't know if you do but I advise you sketch first so it can balance the drawing out and give you guide lines for the drawing instead of free handing it and messing up try adding layers to your drawings.
3. Add shading.
adding shading gives your drawing depth here's an example
The example shows a cat, the light source is to the left and the shading is the shadows it gives depth and looks much better.
Welp thats pretty much all I have to give I hope you take these tips and use them