Powering Arduino Uno Through different inputs

That's not an Arduino Uno form I've seen before with the 12 hole block or the holes in front of the standard headers.  Also, in the small yellow box on the bottom edge, mine is marked IOREF where yours is marked 5V.  Can you give more details on this board: manufacturer etc.  Are they actual holes in front of the headers or is it just the photo?  I assume image 3 is showing a board you want to use to route 5V and GND (don't forget this!) to the Arduino board and isn't actually plugged into the Arduino?

Yeah mine is a bit different thus I am struggling to find any guides mentioning my specfic board (i found an aliexpress link with the same model i have or what looks like it) https://www.aliexpress.com/item/1005004697397154.html?channel=twinner I'm not sure what it is exactly since I received that part from my school and didn't purchase it directly.

And yeah I was wondering if I would have any success plugging in power from the 12 hole block. And no the power supply isn't plugged in to the Arduino, here is a picture of the display and Arduino plugged in 

What is image 3 for then, I don't follow?  Are there holes in front of the headers?

Image 3 is just showing the power supply that I am planning to use to wire the power to the Arduino, apologies for the confusion 

I'll be using the headers on the top to wire V5 to the Arduino, but my only issue is that where can I plug it in if there is a part already occupying the place where it can be plugged in to supply power if you refer to image 2 for the empty slots I have

Ok, as Jan has said, you can sling a wire from your power supply's 5V and GND ports to the VIN and GND port on the header.  Go in from underneath if you don't have the space under the display board.  We'll have to assume that it works like a standard Arduino UNO which does allow this - you could test it first perhaps before actually soldering.  If you have the space underneath the board when it is mounted in a case, you could actually solder in some headers to those holes and then just use standard dupont ended wires like you would use to plug into the standard headers.

I'd go for these two solder holes (corrected after being reminded by @beacon_dave that VIN is before the regulator)

I'd go for these two solder holes (corrected after being reminded by @beacon_dave that VIN is before the regulator)

Yeah normally wiring power to these does actually power the Arduino, however as I mentioned my issue was that these were occupied. 
Now that I know these can be soldered I'll give it a try and see if it works, thanks for the help!

Yes, good point Jan/Dave - I missed that too.  Could I just add that the 5V connection there is the 5V rail used across the UNO and any plugged in boards.  You must be very careful not to over supply to this pin, it should preferably be a regulated 5V supply, and for safety's sake you should not connect power to the USB or Barrel Jack whilst it is powered through that pin.  

I did indeed try and "supply" power through the 12 Hole port thing however this ended up with my Power Supply Auto Shutting off to prevent shorting I guess. 

Do you have USB plugged in?