The age old question

To answer this as routinely and easily as I can here it is:

1. Trial and error, test around with different things and put your focus on the main principles of animation and such to accomplish a good looking walk cycle no matter the shape or size of the asset.

2. Use tools like tween, adjusting the frame rate etc to get a feel for how it all works, what frame rate generally works for what speed.

3. Consider something called animating on 1’s, 2’s and 3’s, this is a term in animation that implies a certain or multiple assets will have their frames of animation doubled or tripled to accentuate the appearance of it all and to save on resources. 1’s would be animating each and every frame so it’s smoother but more unsustainable.