I love your images, really I do but image gallery pages have a bit of a format.
Firstly, and most importantly read this guideline. It'll help you understand what the wiki wants. The key thing to point is naming the images. We'd like to know the character you are trying to point out in the image, at the very least.
Optionally take a look at Neptune/Image Gallery, it is sorted by games. Please sort the galleries appropriately, if you want to know how AND more, please near the edit button, there is a upside triangle button, click that select classic editor, then select source (in the upper right) and play around a bit, which means on the preview tab, check desktop or mobile accordingly, depends on device. Once you understand a bit about it, you can create titles, scrollboxes, galleries, captions and everything else for the wiki. If you are happy with what you change, you can click publish.
If that is too hard, which trust me as a person who just sees various colours in the classic editor just dump the images and someone (could be me, due to, well, this is what I do) will clean it up. Please name them well. What is already named, don't worry, this is specifically for any future images.
If you have any questions and concerns, please do not hesitate to ask. I just want to help and make you the best editor you can be :)