This is really beautiful color work! I love the little spots of red interspersed throughout with the hot points. That ink brush work also goes a long way to sell an old story vibe.
I'm not terribly familiar with Miyazaki's movies but all of the figures are pretty visible. though it looks like Miyazaki himself is a bit pushed back and out of focus.
Also the framing itself can probably use some work, the frame break on the right side is a bit too substantial for the lack of 'visual weight' on the left side. This can be fixed by shifting that framing rectangle toward the right to make the unevenness more balanced, or by adding a frame break and more visual weight to the left side. Also the cutoff at the top definitely isn't ideal, but isn't breaking anything; It's just something you could watch out for when sketching out work in the future
However there is a glaring issue and that is your documentation and placement. The lighting in the picture is taking a bit away from the beautiful colorwork you've done. On top of this the framing is slightly off which can sometimes be fudged, but when you have a square frame like yours it makes it much more noticeable that the framing is off when the lines don't line up with the edges of the image itself.
To fix this I recommend waiting until daytime to take your picture, if you don't have good lighting in your house. Also try taping the paper to a wall with solid indirect light on it. Also take a bunch of pictures and adjust your angle and choose the best ones.
Also in post most basic photo editing programs (even default ones on phones) can do pretty well with adjusting lighting and shadows. If you're not tech savvy, or lack photoshop skills or program, you can ask somebody in the art forum if they can do it for you (I'm available to do it).

Hope some of that helps!