|*Hello from Sid and the Critique Club*
An unusual image that struggles to meet the challenge.
Its a nice idea and I like the ground level viewpoint, its always effective to get a different perspective but those shoes are far too clean to fulfil the challenge brief. They may be dirty to you but they're near pristine to me, yes, you're right my standards are low! In actual fact what I initially thought may be marks on closer inspection appear to be part of the shoe's pattern.
The other problem here is the focus, it is too far forward, its just the shoes we should be interested in here but there is too much dirt in focus. I'm beginning to wonder if that was your intention but I have to go by the title which implies that the shoes are the most important element. The DOF is too shallow, we only have the tip of one shoe in focus, so given the title we ought to have say, f2.8 and a focus point on or near the tip of the shoe for a more effective result.
Thank you fro your submission, Sid