Good afternoon, since I started studying design a long time ago, I ran into a lot of questions along the way and choosing the right color scheme for me was most often one of the most difficult. I see your work is done very well, I really like it, I can only tell you to try to take different color schemes on https://create.vista.com/colors/palettes/vintage-color-palette/ and try to do it with their help, I think it should turn out super, there is a huge choice, you will definitely find the right option for yourself.