Clean Logo Design Based on Concept Drawing

I need a clean logo design based on a sketch concept. The final product needs to be in high resolution in all standard electronic formats, for print, website, etc. I am attaching the sketch concept. Basically, it's concentric circles with different colors that match the colors in the Google logo. However, the circles are not centered and I need a nice font with the app name. I don't expect the final logo to look exactly like the sketch. I need someone with good design skills to run with this concept and make it fantastic.