diff --git a/Tests/test_pyarrow.py b/Tests/test_pyarrow.py
index 76075bda2..ece9f8f26 100644
--- a/Tests/test_pyarrow.py
+++ b/Tests/test_pyarrow.py
@@ -17,7 +17,9 @@ pyarrow = pytest.importorskip("pyarrow", reason="PyArrow not installed")
 TEST_IMAGE_SIZE = (10, 10)
 
 
-def _test_img_equals_pyarray(img: Image.Image, arr: Any, mask) -> None:
+def _test_img_equals_pyarray(
+    img: Image.Image, arr: Any, mask: list[int] | None
+) -> None:
     assert img.height * img.width == len(arr)
     px = img.load()
     assert px is not None
@@ -53,7 +55,7 @@ fl_uint8_4_type = pyarrow.field(
         ("HSV", fl_uint8_4_type, [0, 1, 2]),
     ),
 )
-def test_to_array(mode: str, dtype: Any, mask: Any) -> None:
+def test_to_array(mode: str, dtype: Any, mask: list[int] | None) -> None:
     img = hopper(mode)
 
     # Resize to non-square
diff --git a/src/PIL/Image.py b/src/PIL/Image.py
index 04a80fb9a..188cb91f1 100644
--- a/src/PIL/Image.py
+++ b/src/PIL/Image.py
@@ -3330,7 +3330,7 @@ def fromarrow(obj: SupportsArrowArrayInterface, mode, size) -> Image:
     :param obj: Object with an arrow_c_array interface
     :param mode: Image mode.
     :param size: Image size. This must match the storage of the arrow object.
-    :returns: An Image Object
+    :returns: An Image object
 
     Note that according to the Arrow spec, both the producer and the
     consumer should consider the exported array to be immutable, as
diff --git a/src/libImaging/Arrow.c b/src/libImaging/Arrow.c
index 493c2a87e..33ff2ce77 100644
--- a/src/libImaging/Arrow.c
+++ b/src/libImaging/Arrow.c
@@ -110,7 +110,7 @@ export_imaging_schema(Imaging im, struct ArrowSchema *schema) {
     if (retval != 0) {
         return retval;
     }
-    // if it's not 1 band, it's an int32 at the moment. 4 unint8 bands.
+    // if it's not 1 band, it's an int32 at the moment. 4 uint8 bands.
     schema->n_children = 1;
     schema->children = calloc(1, sizeof(struct ArrowSchema *));
     schema->children[0] = (struct ArrowSchema *)calloc(1, sizeof(struct ArrowSchema));
@@ -137,7 +137,7 @@ release_const_array(struct ArrowArray *array) {
         array->buffers = NULL;
     }
     if (array->children) {
-        // undone -- does arrow release all the children recursively.
+        // undone -- does arrow release all the children recursively?
         for (int i = 0; i < array->n_children; i++) {
             if (array->children[i]->release) {
                 array->children[i]->release(array->children[i]);
@@ -235,7 +235,7 @@ export_fixed_pixel_array(Imaging im, struct ArrowArray *array) {
     // assert(array->buffers != NULL);
     array->buffers[0] = NULL;  // no nulls, null bitmap can be omitted
 
-    // if it's not 1 band, it's an int32 at the moment. 4 unint8 bands.
+    // if it's not 1 band, it's an int32 at the moment. 4 uint8 bands.
     array->n_children = 1;
     array->children = calloc(1, sizeof(struct ArrowArray *));
     if (!array->children) {