It is hard to take a practical balance between functionality and aesthetics in most designs, but I think I managed to do so in mine. Thanks for you advice I will bare this in mind.
Got it, thank you very much I really appreciate it. So according to your analysis, both Wood and Fire elements improve my luck. Does Water element bring me some good luck as well?
While my Metal element keeps attacking my Wood in my pillars, can the female water element in my month pillar next to the wood element in the year pillar somehow neutralize the effect of the attack? As some Metal is being depleted to enrich Water, I suppose it will lower its devastating effect on my Wood? Moreover, being enriched by my Metal, my Water can also strengthen my Wood element. So the end result is that my Metal strengthens my Water which in turn strengthens my Wood, thus the severity of Metal cutting Wood is reduced?
I believe that you've spent quite a long time to study your own 8-words. Although you might not fully understand what's going on within those words, however I guess you must agree that there are two different forces exist in your 4 pillars. Those are: Wood+Fire, Metal+Water.
As I stated above, there are two different forces exist in your 4 pillars. Each words got their own missions. By understanding the relationships between each words, then you will know what's they want to achieve, what they want to get. Every single word has its own purpose. When the words with similar nature/ purpose become a group, the power of the group will be very strong (if compares with one single word).
The 癸水in your day-pillar represents yourself, the other one in month-pillar represents your father, close friends and business partner.
Let's talk about the 月令 first. 癸 born in 未 month, 未 is a month with strong elements of soil and fire. 乙卯exists in year-pillar, and the 卯 combines with 未, became a half wood group. This half Wood-group is strong(乙卯+卯未), Wood would consume 癸's power and make the 癸 in the day-pillar weaker. NOTE: when we talk about strong or weak, our focus is always on the upper word in the day-pillar.
Now, let's see if 癸 got any supports from other words. There is a column of metal exists in the hour-pillar: 庚申; the 癸 in the day-pillar is sitting above a piece of metal 酉; 申+酉= a half metal group, plus the 庚申 in the hour-pillar, the power of the metal is strong as well. Metal gives support to Water, it makes Water stronger.
On the other hand, the other 癸 (the one exists in the month-pillar), it also can provide support to the 癸 in the day-pillar. It is sitting above the half wood group, and there is a strong wood next to it. Therefore, the 癸 in the month-pillar is weaker than the one in day-pillar (the day-pillar one got direct support from the metal group). It avoids the 癸 in the day-pillar to lose power to the wood group directly.
Now, you should understand why I said your 8-words are quite balanced. But, we still need to find out which group dominates the trend of your 8-words. The wood group is strong because it occupied the month pillar position, however the metal group is strong as well because it provides direct support to the 癸 in the day-pillar directly without any interruption.
The most important thing is, now the 庚 is 合 with the 乙; the 乙 is like captured by the 庚, while the original purpose of the 乙 is to release 癸's power and make it weaker. Now, because of the action of the 庚, 乙 cannot perform its purpose effectively. This situation makes both 癸 cannot release their power, while keep getting support from the metal group. It makes the balanced situation became not so balanced (a bit strong than balanced).
8-words' theory works like Chinese Medical. Useful word is a medicine. Every 8-words reader should know the basic rule: release the power if it is strong; gain more support if it is weak. In your case, you need to release some power, so 乙 is the medicine. In the original situation, 乙 is always captured by the 庚, it means if you can release the 乙, then you will have good luck (it happened in 2004).
One key point which no body mentioned to you on this forum is, wood is your medicine and you got a very strong and pure wood in your 4-pillars (only female wood, no male wood). The pureness of your medicine dramatically increases its power. When the female wood got released (male metal got attack by male wood), it can perform its original purpose effectively. It also makes your level of life becomes higher (if compares with others) Congrats

The nature of wood needs water and fire (sun and warm climate). You were born in a fire month, it helps the wood grows better (木性向陽, 有水有火才有生發之機). However since the month has combined with the year-pillar and became a half wood-group. You need a bit more fire to help the wood develops better.
Wow... I wrote too much... Hopefully, I can clarify your doubt.
By the way, I've cross-checked with your purple math chart. You are right, your partner was very lucky in 2004. I guess he/she must gained more money than you in that particular year. Please share more details with me, if you don't mind.