Thanks shutterpixi !
A few informations afterwards (it was a bit late in the night when I did the upload). One season is missing, may be I will try to work it out and add the 4th. The 1st pic, winter window, was a free one from Pixabay. For the next two I took the brown window frame, used the tools “eraser and background eraser” to get rid of the winter landscape, found pics for spring and summer, adjusted in the window, added sun flowers and the squirrel interested in walnuts :-). Hobo is the font I used. For the green color around the windows I used the scratch remover for the first time because when I did the flood fill there were still little white traces. Good training.