Design a similar curved Background (Vector)

Hi Designers! If you are creative and like cool things - then you are right for my project! I need a graphic similar to the one I've attached. This should just be in this style, but of course slightly different from this. Primarily it should be blue colors with a small gradient. (Currently, there are several red colors, as you can see.. ). Summarized again:   - Similar graphic   - Blue colors NOTE: It would be best, if the graphic is created in adobe illustrator. I need a vector file. Furthermore, it would be good if the image size is as observed in the original. Important: You should not design an 1:1 copy in blue, but a similar background. For example, the curve may be a little different :) If you have questions, write me. :)