Write an iPhone/Android application, Write a Karaoke/Lyric Trivia App, my sketches of idea are done & posted- Use and make it great -- 4

I came up with this app to have 2 different parts. The app will be called Song Duel with a Karaoke part and a Lyric trivia part. I love music and came up with this idea as a fun app that will go viral targeted towards kids, young adults, and musicians looking to use it for fun and professionally to improve as well. 1. Karaoke: This part will use the top songs across the top genres to start, and only play the instruments while showing the lyrics going across the screen like Rock Band/Guitar Hero. It will be just the choruses that are sung to keep it quick and fun. It is a competition and the points you get will be from singing well with good timing, pitch, volume, ect. Then the person you are competing with gets their turn to sing the same chorus better and get more points to win. Each person will get 3 choruses to sing in the "match" with their competitor. Verses of popular songs as an option in the future. 2. Lyrics: This part will use the top songs across the top genres to start and only play a portion of a chorus and then stop playing mid sentence, then immediately go to the next screen with a timer and 4 choices of the words (similar to each other in nature) that come next. If you click on the right one, the line of the song is finished and played out loud. There will be 5 different choruses in the "match." Verses of popular songs as an option in the future. I have spent a lot of time sketching my vision of what it would look like and re-doing them over and over again, improving them and making it cleaner each time. My sketches have what I was thinking for different sizes, proportions, colors, graphics, ect. I am looking for you to take my vision of these sketches and run with it to make something truly great with color, exact proportions, functions, ect, to make a fully functioning live app. Here's what I'm looking for: - Color and layout of the different screens and functions - Try to improve the "Song Duel" logo if possible that is shown - Premium looking and clean app design and functionality - Fully functioning live app for iPhone, Android, and Windows. If I need to start with one operating system to start, definitely IOS Apple iPhone I can't wait to see what you come up with. Thanks! Casey