I like the character designs.
The "mystery" wasn't quite clear, as we don't know if the studio audience noise is normal or abnormal as she never directly references it. -She just gets angry when it happens.
Also the animation could have been made more fluid and less choppy with more in-betweens, I think the scene that could have benefited the most was when she jumps into bed, as we just get a few still shots of the bed, instead of it's reaction.

I suggest reuploading the video with these improvements, if you can.

Animation was good, Character designs were good, shading was good, Follow-through went well.

Main problem was the "story", for it's lack of a cohesive narrative. I understand you're trying to be vague and open for interpretation, but there isn't much to go off of.
Our main character is a weird green dinosaur(?) and she works for a cat that channel surfs through static.
She works in a store that sells "Only Mugs" and as soon as she steps outside we see a "Lunch-Sign" vanish.
There was nothing there to grasp and relate to, so when more weirdness happens, it gives us little reason to care.

I can tell a part of the plot is our main girl getting her lunch, but it's only addressed through a few signs, and never outright stated.
I liked how the dinosaur built a friendship with the bird, and didn't want to lose her new friend. But again, they met randomly in a car, so the audience doesn't know why they should care when they could separate as randomly as they met.

The ending was...there.
She didn't give up her bird and they went and got Lunch.
Then a curtain closes and the green dinosaur says everyone goes through this at some point?
Sorry but NO, we do not.

If you are trying to make a statement on how some people feel like their working harder and going through stupid trials in their work just to get some lunch, or to not abandon your friends, this was not a good way to do it.

Here's what I would have changed:
1. Instead of "Only Mugs", make it an electronics store, or an entertainment store, one that actually relates to the villain's weird list of things to do.
-This would give us ideas on why the Cat-boss may force his employee through these weird endeavors that relate to TV sets.

2. Have the green dinosaur meet with the bird outside the store. She can exclaim something like "Oh it's you again, glad to see your coming along". This introduces the bird as another character in the story, and we see they've already known each other, which will add more of an impact for that "twist" in the story.

3. Change the name to something that has meaning to the story, and isn't just another random idea.
What does "Milk-Dust" even mean here? Milk played no pivotal role, neither did dust.
With the number of themes you included you have multiple better titles.

What about something relating to TV?

Like:
-Channel Crisis
-Remote and Out of Control
-Entertain Insane

Lunch played a big theme as well, what about:
-Food For Thought
-Lunch Rush
-Defeat it to Eat it

Working hard was a common theme, what about:
-Stress for Success
-Promotion Locomotion
-Hired and Tired

The bird turned out to be a main point, what about:
-The Bird Factor
-Flight out of Sight

You can even combine themes to get mixed up titles like:
-Channel Thoughts
-Entertainment Eats
-Bird Rush

There are lots of other titles that would have had more meaning. It's sad to see you failed in that category.

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TLDR: Good animation and design, not so well thought out story.
C+
7/10

Not too bad, but I wouldn't watch again.

Wait, why does this get the front page?
Can we just ask for it?

Why is it called "Secret Santa"? Nothing against the art, but I see no Christmas in this.

I think what you meant to say is "Christmas Gift for DkayR".

I love the first girl's outfit and design, very cute and sexy. I also like the Don patch character.

"Wait Susie, I thought you were against hurting your friends?"
Cute design with a little sexiness and I like the dress-cut to show off some leg.