diff --git a/src/main/java/dev/zarr/zarrjava/experimental/ome/MultiscaleImage.java b/src/main/java/dev/zarr/zarrjava/experimental/ome/MultiscaleImage.java
index 3911360..eb25d17 100644
--- a/src/main/java/dev/zarr/zarrjava/experimental/ome/MultiscaleImage.java
+++ b/src/main/java/dev/zarr/zarrjava/experimental/ome/MultiscaleImage.java
@@ -3,9 +3,11 @@
 import dev.zarr.zarrjava.ZarrException;
 import dev.zarr.zarrjava.core.Node;
 import dev.zarr.zarrjava.experimental.ome.metadata.MultiscalesEntry;
+import dev.zarr.zarrjava.experimental.ome.metadata.OmeroMetadata;
 import dev.zarr.zarrjava.store.StoreHandle;
 import dev.zarr.zarrjava.utils.Utils;
 
+import javax.annotation.Nullable;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -37,6 +39,18 @@ public interface MultiscaleImage {
      */
     int getScaleLevelCount() throws ZarrException;
 
+    /**
+     * Returns the OmeroMetadata if present, or null if not.
+     */
+    @Nullable
+    OmeroMetadata getOmeroMetadata();
+
+    /**
+     * Returns the bioformats2raw.layout property if present, or null if not
+     */
+    @Nullable
+    Integer getBioformats2rawLayout();
+
     /**
      * Returns the axis names of the first multiscale entry.
      */
diff --git a/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_4/MultiscaleImage.java b/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_4/MultiscaleImage.java
index ae6095c..9de5b16 100644
--- a/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_4/MultiscaleImage.java
+++ b/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_4/MultiscaleImage.java
@@ -30,7 +30,7 @@ public final class MultiscaleImage extends OmeV2Group implements MultiscalesMeta
     @Nullable
     private OmeroMetadata omeroMetadata;
     @Nullable
-    private Integer bioformats2rawLayout;
+    private final Integer bioformats2rawLayout;
 
     private MultiscaleImage(
             @Nonnull StoreHandle storeHandle,
@@ -83,6 +83,7 @@ public dev.zarr.zarrjava.store.StoreHandle getStoreHandle() {
         return this.storeHandle;
     }
 
+    @Override
     @Nullable
     public OmeroMetadata getOmeroMetadata() {
         return omeroMetadata;
@@ -93,6 +94,7 @@ public void setOmeroMetadata(@Nullable OmeroMetadata omeroMetadata) throws IOExc
         persistAttributes();
     }
 
+    @Override
     @Nullable
     public Integer getBioformats2rawLayout() {
         return bioformats2rawLayout;
diff --git a/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_5/MultiscaleImage.java b/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_5/MultiscaleImage.java
index 9623cf5..3f45375 100644
--- a/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_5/MultiscaleImage.java
+++ b/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_5/MultiscaleImage.java
@@ -13,6 +13,7 @@
 import dev.zarr.zarrjava.v3.GroupMetadata;
 
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.List;
@@ -68,12 +69,14 @@ public MultiscalesEntry getMultiscalesEntry(int i) throws ZarrException {
         return omeMetadata.multiscales.get(i);
     }
 
-    @javax.annotation.Nullable
+    @Override
+    @Nullable
     public dev.zarr.zarrjava.experimental.ome.metadata.OmeroMetadata getOmeroMetadata() {
         return omeMetadata.omero;
     }
 
-    @javax.annotation.Nullable
+    @Override
+    @Nullable
     public Integer getBioformats2rawLayout() {
         return omeMetadata.bioformats2rawLayout;
     }
diff --git a/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_6/MultiscaleImage.java b/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_6/MultiscaleImage.java
index 69b2747..327f718 100644
--- a/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_6/MultiscaleImage.java
+++ b/src/main/java/dev/zarr/zarrjava/experimental/ome/v0_6/MultiscaleImage.java
@@ -18,6 +18,7 @@
 import dev.zarr.zarrjava.v3.GroupMetadata;
 
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -85,12 +86,14 @@ public MultiscalesEntry getMultiscalesEntry(int i) throws ZarrException {
         return omeMetadata.multiscales.get(i);
     }
 
-    @javax.annotation.Nullable
+    @Override
+    @Nullable
     public dev.zarr.zarrjava.experimental.ome.metadata.OmeroMetadata getOmeroMetadata() {
         return omeMetadata.omero;
     }
 
-    @javax.annotation.Nullable
+    @Override
+    @Nullable
     public Integer getBioformats2rawLayout() {
         return omeMetadata.bioformats2rawLayout;
     }
diff --git a/src/main/java/dev/zarr/zarrjava/v3/GroupMetadata.java b/src/main/java/dev/zarr/zarrjava/v3/GroupMetadata.java
index 7d3dd85..56414a2 100644
--- a/src/main/java/dev/zarr/zarrjava/v3/GroupMetadata.java
+++ b/src/main/java/dev/zarr/zarrjava/v3/GroupMetadata.java
@@ -17,7 +17,7 @@ public final class GroupMetadata extends dev.zarr.zarrjava.core.GroupMetadata {
     @JsonProperty("node_type")
     public final String nodeType = "group";
     @JsonProperty("consolidated_metadata")
-    public final String consolidatedMetadata = null;
+    public final Object consolidatedMetadata = null;
 
     @Nullable
     public final Attributes attributes;