1. Try to see what's distinctive in your art as you move it through different mediums: pencil, charcoal, watercolors, digital, etc. Grab that distinction/uniqueness and build on it.

2. More rats... But don't listen to me, I'm biased. Ha. Well, I've never seen you draw comics, that would be a nice addition.

3. Try spamming their submission inboxes, write a journal every week or couple of times per week to appear like you'r alive and kicking. ;3

I have these exact same problems....

You're much more skilled than I am, but I'll try to find something useful to say that hasn't already been said.

The majority of your works that I see (sticking to the first page mind you) are either facing left or straight at the viewer, with perhaps a slight angle. Maybe try some different viewing angles (I do like that one of the horse that is facing away).

Many of them are still portraits, or slow-action (such as Wind Walker. There is wind movement, but still a very calm scene). I'd like to see more fast action, such as Wild Ride. That has great energy and wonderful overall composition concerning the perspective.

Also perhaps offer some smaller commission sizes for those of us that are poor. I'm not saying cheapen your art, because your time, effort, and sill you've put in really shows and it's worth every penny, but most of us cannot afford such large pieces. Maybe some ACEOs that we can throw $30 at or something.

*skill not sill

I'd like to see more interesting backgrounds, and characters interacting. Maybe you could illustrate some scenes from literature? Perhaps do some fanart?

1. As someone stated above, try expanding your choose of medias.

2. I actually love seeing your non-furry artwork as well as your fan artwork.

3. Social media of some kind. It doesn't have to be Twitter, but pick something you find that works and post updates regularly, once a month, twice a month or whatever. The post don't have to be "I"m taking commissions" or "I posted new art", they can be just about anything.

You know your work better than anyone else, you know what you need work on/what is your weak areas, those are what you should do more of to make your work better (if that is even possible).

1.“How do you suggest I improve my Art?”
Not sure what to suggest in this regard considering you do a pretty good "realistic" style as it is. Perhaps try going for more dynamic posing of your subjects?

2.“What would you, my viewers/fans like to see in my Art?”
Perhaps go for some more different species than the "norm?"

3.“What way do you suggest I do to increase my visibility and viewers/fans/customers?”
This is one of the most difficult things for an artist to do. Typically going the more adult route tends to be the path most taken, but I would advise against it.
Personally, I would suggest going the quantity route, and just spam the heck out of the art feeds to the point that people can not see your artwork any where.