i just read the whole thread again... and realized how unfriendly my words sound when reading them out loud...
Relax.
but i wont add such obvious feet, that does not match into the style it self ^^ it just feels wrong looking at it
That's fine.
I'm not suggesting the pixels should be drawn as I have placed them.
Just illustrating that visual change will help emphasize the action being shown.
The front view was perhaps not the best choice to show this concept as it involves more perspective than a side view.
Here is some side variations to show what I meant by using the idle causes him to drag his feet:
In A the foot slides across the ground moving forward and back.
While this can be used to express certain walks typically the foot lifts off the ground as it moves forward.
B shows lifting the back foot so that it can pass forward and become the front foot.
C is a variation that shifts the foot and leg forward, placing the marker closer to the center between the 2 frames.
Weighting the middle frame to one side or the other has different affects on the animation.
Other variations could be made.
somehow... as if the foot is weirdly bend upwards...
Unnatural deformations are very common in animation and help express visual change thru the use of exaggeration.
At higher frame rates exaggerated frames go mostly unnoticed as a stand alone frame and blend into motion improving it.
At lower frame rates those exaggerated frames stand out a lot more as we see them longer and they become an individual pose within the animation.
Is it the best frame for the current job?
Well not exactly but the idea is to emphasize change.
The amount of change to use depends on many things.
I tend to use a high amount of elasticity, but then again I tend to work at higher frame rates.
But it can work well at low frame rates as well.
A good process for creating animation is to make 3-5 variations.
The first time thru draw everything very clearly with extreme exaggeration.
Then with each next version pull back some of those extremes or try something completely different.
The idea being it's mentally easier to dial things back than to push them forward.
Here is an example I did for WingedDoom sometime ago:
Then compare them all and decide which is the best or combine a few if needed.
Side by side comparison is essential to making choice.
You will not be able to accurately judge with only your mind.
You must use your eyes.