2D Tower Jump Platformer Game - Level Art Design

I am developing a game similar to Icy Tower which can be seen here: https://store.steampowered.com/app/3014860/Icy_Tower/ I am looking for someone to design the artwork assets for 12 stages. However artwork must have a different style than Icy Tower because we don't want to infringe on copyright. The game will have an aspect ratio of 4:3 where the longer size will be the horizontal side. Resolution has not yet been selected. Refer to the attached file. Each stage requires, 1) a platform for the character to jump off of (as seen in Icy Tower). The platform should be drawn in a way that can be extended or shortened in length. 2) Side walls to enclose the tower jumping area (as seen in Icy Tower). The walls will be continuous until the end of the stage. 3) Background where we see beautiful visuals as the player jumps up the platforms (similar to Icy Tower). The beginning of the background visual would be unique, but as the character jumps higher and higher, the background will continue as something continuous like the walls. Stage 1 Tall Office Building: The character is trying to escape their 9 to 5 job by jumping up the platforms to reach the top of the building. Consider the office building as a tall skyscraper Stage 2 The Sky: The character jumps on cloud platforms to jump higher and higher. The walls are made of clouds and the background visuals are different things you see in a sky such as birds, airplanes, parachuters, etc. Stage 3 Sky Island: The character reaches an island floating in the sky and jumps up the wooden jungle platforms. The background visuals are the jungle and a mountain in the background until reaching the sky again. The rest of the stages will be revealed when this contract is awarded. The visuals should look professional and beautiful.