If your goal is photorealism -
I would echo a previous posters crit that the white lettering is too much - it seems too big, and there would be other non-white lettering on the tyre e.g. PSI rating/serial numbers/whatever in raised rubber print. - its absence makes the the white lettering even more prominent.
Also I would agree the tyres look very plastic… the edges of the tread pattern seem very bevelled - maybe the material just means the bevels catch too much light, but i’ve never seen a tyres tread catch those super-white highlights - if anything the edges on a brand-new tyre are sharper than that e.g. less bevel, and don’t reflect light like that at all.
I think it could be reduced to unnoticeable with different material settings - less specularity i’d say - The top tyre looks more like i would expect - e.g. no bright highlights on the tread edges. A little bit is probably good, but not too much.
I think this render just needs more subtlely - otherwise the modelling is excellent