Never run the skimmer right away at manufactured spec water level. The skimmer will take a few days to break in, and running it higher up in the body, you run a good chance of it overflowing....
Meowzer the install looks very good!!!!! Keep your eye on the water level, and don't anticipate to see it pull mad junk day 1. Manufacturing oils and such have to be washed away. That's why alot of people will run their skimmers in a vinegar solution to try to speed up the break in period. Honestly I would leave it where you have it set now, but keep your eye on it for a day or 2 and if needed raise the water level in the body slowly, and make slow adjustments....The affects of the adjustment won't be instant, so make sure you don't adjust and have to leave right away.
Your "beast" looks good!!!!!!