just thought i would share my scene and ball and pin with people had a little play in the node editor applying textures still abit confused about normal maps and displacement textures but looks okay so far and i did not want to spend too much time on this hence the lanes looking very bland 
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add more lamp (3) and increase strength and size (shadows).
I did try adding 3 lamps to the scene but i got a lot of noise and white specs on the render and was not sure how to fix it i tried playing with the brightness and different colours but couldn’t fix the issue until
I removed 2 of the lamps
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Noise comes from Cycles.
Which is caused by the low samples 64, go to 500, 1000 …
And also low light.
But it makes you render slow. That’s why we have now Eevee.
But you can keep low sample (64) and turn on the denoising option.
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wow this render is coming out amazing this really helped thank you i did also find in the node editor i had my gloss and diffuse textures crossed over into the wrong shaders 
also the back wall is supposed to be bricks but there streched across the mesh any idea how i can fix that?
Also is there an optimum tile size for rendering?
and I have been using cycles as in the past i believed it was the best for realism is that still the same?
here is the new render 500 samples denoising ticked 3 lamps and 4k render this time, 7 minutes to render
What an amazing difference !!!
You probably, did not apply scale to the wall !
Select the wall, CTRL+a , apply the scale.
Or you have stretched (transform) the texture in the node setup.
No an yes! It depends on your specific hardware and project type!
To find out you need to do some test runs. Increase samples and look at how they influence the speed.
For animations (scene repetitions, it can help).
This is also true for CPU and GPU rendering. GPU is not always the fastest.
Yes but depends, with Eevee you can do also amazing things. But then you need to know more about Eevee and al those settings. Shadows and transparency are difficult in Eevee. If you don’t have that so much. Eevee works fine (look at realism in some games).
You have a fine piece of hardware. but 128 with the denoiser on, will have nearly the same quality … just some test runs to get more info on that.
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You probably, did not apply scale to the wall !
Select the wall, CTRL+a , apply the scale.
Or you have stretched (transform) the texture in the node setup.
okay i set rotation and scale still nothing
here is my screen and node setup please help if you can 
Ah, my fault!
You are using a bitmap wall texture!
Then you need to know how to work with UV-Maps!
Your wall need to have an UV-Map!
Which tells the texture how or NOT to stretch the bitmap.
Select the wall and go to the UV editing workspace.
Go into edit mode select all vertices (‘a’) , press ‘u’ select unwrap.
Left panel shows the wall UV map.
Select stone image from the menu as shown
Scale, stretch the uv-map to the dimensions you need.
That said, it’s an advanced technique which will be explained in the course.
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You are simply the best!
I had remembered how to link up the nodes and add textures but forgot completely about UV maps haha
thank you so much for helping with this looks so much better!
128samples, different lights now much better no blur, UV maps done i think i preferred the lane without the UV mapping 4k render 1min 38 sec:
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Now, with a fast render speed.
Maybe focus on a animation … ?
Just have fun. Show us your progress!
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I will cant wait to get to the animations!