VFR over the Top and Approch to Koblenz-Winningen

When flying from Oerlinghausen EDLO to Koblenz-Winningen EDRK, there was a line of bad weather (Overcast 200 ft) stretching from Paderborn to Dortmund. But I decided to take off and climb to take a look, and tops were just around 3000 ft, so I climbed to 4,500 and flew over the closed deck for around 20 minutes.