That looks like a very nice bike, well set up and beautifully cared for. My bike fitting primer is here:
https://www.bikeforums.net/21296948-post3.html
Going through that process should tell you whether or not the bike is the right size. When you finish the fitting process and have ridden it a few miles to make sure you got it about right, post a couple photos of you on the bike. You'll have to use a stand or lean against something:
1) Hands in the drops, balls of feet on the pedals, elbows slightly bent, cranks vertical.
2) Cranks horizontal, hands deep in the drops, elbows bent to almost 90°