When creating a new logo, it's important to ensure that your design is unique: this requires researching and planning your concept thoroughly, and executing it carefully.
And it isn't just the aesthetics of the logo you need to consider - you must also take into account where and how it will be used. How will your design operate in different media? Will it work across print, online and on stationery or other promotional material, and will it still work in smaller and larger sizes?