Q:

D1 mini - pin hole / track repair

I've just bought a very bad quality D1 mini board. While soldering pins, I made rookie mistakes and I had to desolder, then (really bad) pads got detached from pcb. I certainly don't have experience replacing pads and keeping through connected holes right, so I figured why not connecting ESP23F directly to JP, bypassing PCB tracks. 
By simply visually checking the tracks on the PCB, I can't tell if all ESP12F pins are directly and one-to-one connected to each pin hole, moreover, the top side of the board seems simple enough but I'm not so sure about the bottom side.
So, I definitely can send the board to the trash and buy a new one (why not, they are cheap even in Argentina), but where is the fun in all that?
That's why I'm asking for any advice on how to solder JP given the missing pin hole pads.
I'm might be wrong, but if this can be performed by soldering ESP12F JP to pin hole/headers on the top side, and soldering the unconnected tracks in the bottom side with thin wires to the right JP on the top, it would be helpful to know which are the correct connections.
Edit: Pictures of the repair process

A:

No that I understand what you're trying to do (rather, what you have already done, as it appears from your images), no, you cannot simply bridge each pin to the pad it is next to. It seems that since you have already gone ahead and done the soldering, my answer is rather pointless, but I will go ahead and answer anyway for posterity's sake...
Your question could be easily answered by looking at the schematic: most of the pins have a 1:1 correspondence, except for ADC/A0 and power supply pins. From your images, it appears you have bypassed the ADC divider (not so bad), misconnected several GPIOs (16, 14, 12, 13, and 15), connected GPIO15 to GND (not good), and connected 5V to ground (very not good). If you have powered up the unit in this state, I suspect it will be very unhappy.
Additionally, as I can't tell which tracks have been lifted where, it's possible that vital circuitry has been disconnected from the pins. In short, scrap the board and start over. All in all, not a bad board to learn how to solder on, a $3 board isn't much of a loss. In the future, patience and reading the schematic are your friend.
Now, if you do want to try and repair it:
First, look at this schematic. This is the official schematic from Wemos, and hopefully matches your board (no guarantees though, that's the consequence of cheap dev boards).
From the schematic, here's how things are pinned out (with pinouts flipped where logical):
   JP2 |    ESP-12F    | JP1
------------------------------
   RST | RST        TX | TX
    A0 | ADC        RX | RX
GPIO16 | EN      GPIO5 | GPIO5
GPIO14 | GPIO16  GPIO4 | GPIO4
GPIO12 | GPIO14  GPIO0 | GPIO0
GPIO13 | GPIO12  GPIO2 | GPIO2
GPIO15 | GPIO13 GPIO15 | GND
   3V3 | 3V3       GND | +5V

From this diagram, you should be able to figure out what needs to be bridge to what. For the 5V pin, you'll have to either scrape the trace clean or wire it to the regulator input (although maybe you don't need the 5V pin). May also have to scrape for A0: A0 is different than ADC!

