Need good quality tiles and backgrounds for 2D Platformer game

Hello, We are looking for an artist who can make good quality background tiles for our 2D Platformer game. I need high quality art. I've attached sample with this project, please check those so that you know quality what we are expecting. This is important because we already have many backgrounds with similar quality and you'll need to match it so that it can be used along with the others. Quote your bid for a set of four complete background tile set. If we like it, we will give you a lots of similar project. IMPORTANT: > Check attached images for quality I need. Do not bid if you cannot provide similar quality. > You must have previous experiences of making background tiles for video games. > Show your previous work so that I know you can do it. Thank you.