With regard to the rays of that Sun, and this is pure speculation on my part, I suspect that should all the rays of a full sun be drawn in, there would probably be 33 of them.
C T Russell, being, most possibly either a Mason, or knowledgable about their esoteric beliefs may well have attempted to encapsulate everything symbolic of esoteric beliefs on the front page of the very early Watchtowers, bearing in mind that the original ones were called 'Zion's Watchtower'.
'Zion' was the name of the Masonic Order closest to where Russell lived.
I suspect that Rutherford would not have had esoteric leanings that Russell had and may well have poo - pooed 'all that clap trap'.
However, WT symbology remains very interesting when considering their origins but it appears, occassionally, even unofficially in modern mags, as in the famous / infamous picture in the 'Live Forever Book' where the thief is running from police and a necklace with an ornamant strikingly remsembling the famous 'Illuminati symbol' or 'the Eye of God' is falling out of his loot bag.
I suspect that the WT is basically just taking the p@@# out off everyone who chooses to follow them, as they are well aware that they are bull shitting everyone......and are in it for the power and the cash. You can't get to the top of an organization like the WTBTS without understanding that their whole belief system is built on postulating BS and understanding that basically, all they care about is MONEY.
They know who their God is and it sure ain't Jehooplah.....as they will have discovered in their vast library of esoteric beliefs who Jehovah really is....and more importantly.....who he definitely isn't.