Much earlier I was dealing with animating a character, perhaps my progress can be of educational value:

http://www.wayofthepixel.net/index.php?topic=14359.msg133582#msg133582

I think this was the final version of side view:

Interesting design. Do you have some concept art or environment done? It's hard to tell if you are going in the right direction if we are not aware of the style you are trying to convey.

Also, can you show the frames you got so far?

I would agree with Ymedron here. You seem to be mixing perspectives here. Always imply 3rd depth by making lower objects/entities to appear being concealed by higher objects/entities in front of them. It depends on the engine your are using. If it's not allowing a foreground layer (which would, for example, contain walls), this concealing must be "faked" by very pixel tile work.

I really dig the details on the dirt ground, although I think the green leaves appear like pasted over it, and not growing from it. Maybe add some shadow there. Also, maybe you are mixing too many different type of details there (moon craters, light areas, dark areas; a bit inconsistent and generally too much one such small area).

In the end, the implied height of the wall is not consistent with the height of characters.

I overall impressed by the quality of pixel work and it's the skill level I would kill for, so you are really little from making kick-ass pixel art. You only need to concentrate more on these perspective/size/style problems. The very technique, for my standards, is excellent.

Emphasis on game development. Not saying programming in general is easy. On the contrary.

It's still in my opinion EASIER to master a programming language than drawing or composing music, as it is mostly skill, very little talent.

Honey Valentine -  I think there are some problems with the proportions. The head appears too small compared to legs (or generally, size of extremities compared to head and torso are off). I like the usage of colors and the design overall (fluffy slippers).

Ixya - Again, I love the colors here, and the anatomy is much better compared to Valentine. Her posture lacks balance, though. I think you need to shift the center of weight a bit forward, and her hands definitely need to be corrected (do you have the reference image available online?).