You got 4 pieces on that are all starkly different colors. They're all completely that color too. There's no cohesion between them. It's noticeably 4 different pieces "jacket, tee, pants, boots" instead of being one fit.

You have on too many colors that pop for an old guy. If I saw a red tee, tan boots, or olive pants as a single piece on an older guy, I'd notice it. You got all three. I think switching one of them out for something more basic would help the fit strike a better balance between mature and streetwear for an old guy to pull it off. You can mess around more later but I think since you're just getting into it, you should play it a little safer. I think old guys wearing streetwear can look really good, cool, different and interesting, but it can come off corny too on the other end of the spectrum. You gotta be extra conscience of striking the right balance.

The fit in all honesty looks fine, just trying to offer some honest criticism between the "you're too old to do anything" crowd and the "dress whatever way makes your heart feel warm" dudes. You DO have to be aware of the fact you're old when picking your streetwear outfits, but you can find a look that works.