And also credit the mods that you took stuff from. You can't claim it as your own if you made a logo, added the font (i can do that in 5 seconds lol) and maybe you made like 2 - 3 scenarios.
Or non at all??? We don't know because you need to be clear on what mods you took from and what stuff you took from them. And the name "Addin+"? You clearly stole it. Because i can now make a mod named Addini+. And also, Try to make something of your own and not like: "Hmm, my mod doesn't have enough content... aha! Let's add another map from other mod!" No. Create the map that you're using for your mod. Don't just add it without crediting the mod.