Is this medium rare?

Cooked some top sirloin on a cast iron. I’m still relatively new to cooking steak and don’t know if this is med rare or even if I cut against the grain properly. I used a meat thermometer but couldn’t seem to settle on the right depth to place it. It did taste bomb but don’t hold back w/ tips and advice on how I can improve, i’m trying to get good at cooking steak!

Wagyu Denver Steak

First time reverse searing

What can I improve here? I don’t cook often so just here trying to learn and improve