I think your boredom is your strength because you have created a very heart-melting DLC. I do not think that you have any suggestion to create DLC. You can give suggestions to yourself whenever again you get bored. Just check this DLC again and again and then you will be able to have to check what type of changes you want to make this DLC. Still, if you want any suggestions then I am sharing a website with you. You can find ideas from there because I also like to use the creative design from this page. I also suggest this to my friends and now I decided to share it with you centura tile see!
You can further check if you want to use these interesting sceneries in your DLC next time.