Having low bodyfat (below 10 procent) is key so focus on that!
Another good advice is also being proportionate yes.
I think 'being too big' in most cases is a bit of bullshit.
Which women do not like big muscles wtf? They either lying or they either not really female.
I have this theory that big muscles means sexuality and strength (related to testosterone), in turn testosterone is the sex drive hormone.
So if a girl doesn't like muscled guys, she doesn't like wild sex. So in theory you could say you could bother less to try to pickup a girl who don't like your big muscles.
But this is all kind of sketchy, just use your common sense.
Looking like a Pro Bodybuilder will indeed turn most women off.
Everything between 'being ripped' and 'being big and ripped' is OK.
There are also some specific VISUAL aspects of your physique that makes things attractive, it's not only about 'hugeness'
for example:
Having a six pack == always a turn on
having a profound V-taper == always a turn on
having broad shoulders == always a turn on
Having a powerful looking butt (but not too huge fattish) = almost always a turn on
And then for example
Huge calves = probably more a turnoff
a flat chest with huge arms and thin legs = proably more a turnoff
i will visualize to make my point clearer:

Turnoff for most women

HOT for most women

HOT for most women

This is an example of probably 'the maximum acceptable size to be hot' but it makes it a turnoff that you can see all those veins, girls are grossed out of it.
Although for the more 'skinny' mindend girls this is already too muscled also.
If you want to stay in the 'safe zone' and be sure to get as much as possible chicks turned on by your physique: I think this should be your goal:
However you can look bigger, this has a good and a bad effect:
The good effect: It will instantly draw more attention and attraction to the girls that DO like more muscled guys, so like your chances will be bigger with these girls, but the bad part is that you will have less 'potential choice' if you understand what i mean.
The bigger you are over a certain limit = the less girls will want to hook up with you, but the more attracted the ones will be that do want to hook up with you, so you can get away with less solid game
If this makes any sense...
That said, physique is just physique, IMO you should also train for some other good martial art for 2-3 times per week. I think every man that looks strong should also be strong and know how to fight at least a bit decent. Don't turn into a pussy gymboy with a 'ripped muscled body' acting all tough that runs away if he gets punched once. Take up some boxing, muay thai, brazilian jiu jitsu or wrestling besides your bodybuilding and strength training

Besides it will only help you improve your rippedness and cardio, just make sure to eat and sleep A LOT so that making size gains is still possible.
Having an amazing body, being strong, and knowing how to fight = killer alpha male