Concrete complications

Here is a picture of the dry concrete floor. It looks like it's light grey in the photo, but under the grey dusty layer is a light brown cement. Ultimately, the floor will be a medium-toned brown.

Once the concrete was set, some problems became obvious. In several locations, the cement leaked through the floors above, creating many small craters in the concrete. It can be fixed, but we are concerned about whether the variances in the colour of the concrete patches will show. Our fingers are crossed.