diff --git a/sandbox/Sandbox15/creating-services.rst b/sandbox/Sandbox15/creating-services.rst
index 19284b9406..92016fbf81 100644
--- a/sandbox/Sandbox15/creating-services.rst
+++ b/sandbox/Sandbox15/creating-services.rst
@@ -145,6 +145,8 @@ In this exercise we will quickly configure an Anycast IP address in the Netris C
 
 .. image:: /images/l3lb_srv01.png
     :align: center
+    :alt: SRV01 L3LB
+    :target: ../../_images/l3lb_srv01.png
 
 In order to trigger the L3 load balancer to switch directing the traffic towards the other backend server (in this case from **srv01-nyc** to **srv02-nyc**, which based on the unique hash in your situation could be the other way around), we can simulate the unavailability of the backend server we ended up on by putting it in **Maintenance** mode.
 
@@ -161,6 +163,8 @@ In order to trigger the L3 load balancer to switch directing the traffic towards
 
 .. image:: /images/l3lb_srv02.png
     :align: center
+    :alt: SRV02 L3LB
+    :target: ../../_images/l3lb_srv02.png
 
 More details about AL3LB (Anycast L3 load balancer) can be found on the :ref:`"L3 Load Balancer (Anycast LB)"<l3lb_def>` page.
 
diff --git a/sandbox/Sandbox15/onprem-k8s.rst b/sandbox/Sandbox15/onprem-k8s.rst
index 82ebf5358e..90287c0cb5 100644
--- a/sandbox/Sandbox15/onprem-k8s.rst
+++ b/sandbox/Sandbox15/onprem-k8s.rst
@@ -13,6 +13,8 @@ The Sandbox environment offers a pre-existing 3 node Kubernetes cluster deployed
 
 .. image:: /images/sandbox-l4lb-kubeapi.png
     :align: center
+    :alt: Sandbox L4LB KubeAPI
+    :target: ../../_images/sandbox-l4lb-kubeapi.png
 
 To access the built-in Kubernetes cluster, put the "Kubeconfig" file which you received via the introductory email into your ``~/.kube/config`` or set "KUBECONFIG" environment variable using ``export KUBECONFIG=~/Downloads/config`` on your local machine. Afterwards, try to connect to the k8s cluster:
 
@@ -118,6 +120,8 @@ Going into the Netris Controller web interface, navigate to **Services → L4 Lo
 
 .. image:: /images/sandbox-podinfo-prov.png
     :align: center
+    :alt: Sandbox PodInfo Provisioning
+    :target: ../../_images/sandbox-podinfo-prov.png
 
 After provisioning has finished, let's one more time look at service in k8s:
 
@@ -167,6 +171,8 @@ Wait a few seconds, you can see the provisioning process on the controller:
 
 .. image:: /images/sandbox-podinfo-ready.png
     :align: center
+    :alt: Sandbox PodInfo ready
+    :target: ../../_images/sandbox-podinfo-ready.png
 
 Curl again, without specifying a port:
 
@@ -289,6 +295,8 @@ You can also inspect the L4LB in the Netris Controller web interface:
 
 .. image:: /images/sandbox-l4lbs.png
     :align: center
+    :alt: Sandbox L4LBs
+    :target: ../../_images/sandbox-l4lbs.png
 
 V-Net Custom Resource
 ---------------------