This is a very eye-catching piece and I really like how you placed the emphasis on the center of the image by making it lighter. Even though these are just simple geometric shapes, the colours you've chosen and the way you placed it next to each other creates an interesting effect.
Personally, I think that you can make this pop more by increasing the contrast of the colours and making it more 3D. I think some of the darker hues are placed too closely together and that hinders the visual effect, for example the darker blues are placed a bit too close together.
I have seen similar patterns to this before but nevertheless it's a definitely good effort and I hope you continue doing work like this!
Nice! I like the use of the colors and the geometric shapes. Even though there are many shapes in this piece, it still has a focal point in the center by having it lighter colored. Also the textured you use makes it so that the shapes aren't just a flat color. I don't see anything that has to be fixed!