I don't know why you'd want to quit leveling for that reason. Find a server, get hired there (which I doubt you will have no trouble doing with those levels), and stick them on the server.
Those levels are great. I have no criticisms except that some of the grass tiles in one or two of the levels is just one big, bland green patch, but that could be easily fixed.
If you're going to continue leveling, keep up the good work.
