One old scene of mine to test lighting..
The first image is with hdri lighting the second just corona sun
In the water i putted Juraj’s numbers but i didn’t had good results i wanted in water to see inside the pool … also i miss the caustics…
any suggestions appreciated …!!!
first i think perspective could be added 
I think the opacity is the problem just try 0,1 and make a mask for the titles in opacity slot. And make the plastic material for the titles…
And the bump is extremly everywhere…
i will try that thank you!!