Did you clean the bed surface?

Have you checked the initial nozzle distance from the bed using a piece of writing paper and adjust using the bed leveling screws until the nozzle just rubs the paper.

If that is correct then check if there is any 'Z' offset set in your slicer settings. Make it zero after the paper nozzle check.
Do another first layer test.

Reduce it by minus 0.01mm or minus 0.02mm and do another first layer test and see if things improve, repeat until you are appy with the first layer.