Now to the critique;
the timing is quite good but I feel it’s too even in up/down movement. What happens in a walk is that you put your weight on one foot, takes a step, moves the body weight forward in which it starts to fall. If you don’t put forward the next foot you’ll fall over. So the forward/down movement of body weight should be faster than up.
Change poses. Now your arch is that the highest position is in the middle, you can add a new pose between that and contact position that pushes a bit further into pose, stretch back leg and push weight/upper body forward.
Here’s some very, very rough thumbs to illustrate:
It is intentional. I want to have a snooping walk cycle where the character advance the leg but delay the body because it can be scared or something. It is just a variation, something to make the walk funny and not boring/serious.