I'm Kaitlin. I'm pretty sure I remember you from the HPFF forums, so I thought I'd stop by and check out your gallery!
You're off to a really lovely start so far and I'm really impressed by the variety of your graphics. In particular, I love your chapter images the most. I think the two of them really stand out and caught my eye quite quickly as I scanned through the page. I think the Cinder CI is my favorite because of the lovely pops of purple and pink in the background. The image that you used for Cinder is also really clear and the hardcut on it is so good. (I'd love to see you incorporate some of her cyborg features, but I literally have zero ideas of how that might be done.)
I also really enjoy your Six of Crows Signature. Again, I love the use of color, but also how you blended all of the images into the background. The text on that is really good too and I think the red edging around the title really makes it pop.
One thing that really stood out was the variety of fonts that you use as well. I think often times people struggle with font, but it seems to me that you've done a great job with it. Each banner has a unique text look, but it fits with each banner.
If I had to offer a small amount of concrit, it would be to keep playing with colors. There is a lot of black, white, and gray in your gallery, so I'd love to see you do things with some really bright flamboyant looking colors. Like I said above, that Cinder CI stands out so much because of that purple background.
Anyway, really good work on all of this. I'll be back periodically to check in and look at all of your new stuff! I have no doubt that it's going to be fantastic!