Thank you for sharing this. Are you exporting the image from a PSD file? Compared with https://www.pixiv.net/artworks/133112864, I noticed that some of the images appear to have cooler tones. Compared with https://www.pixiv.net/artworks/130918454, the image here seems to have a layer issue, the gloves should be white, but it looks like the layer behind may be showing through the front layer.
Some software may not fully support PSD files, so I recommend exporting with Photoshop. If you do not have Photoshop, you may want to try https://www.photopea.com/. It's the best alternative I've found for exporting results that are relatively close to the correct appearance.