That is a beautiful pool set up - it will be even more awesome when you get it sparkly clear and you will be amazed at how sparkly it will stay. To have a sparkly pool, I reiterate that you need to order a proper test kit that will allow you to test Free Chlorine and Combined Chlorine. You need to complete this shock PROCESS you have started. "Shock" as used on this forum refers to the process of holding your chlorine level sufficiently high, for a sustained time, so as to kill off organics such as algae. You have clearly made some headway toward clearing your pool, as evidenced by the photos showing better water. BUT in order to have completed the shock process, your water must pass a three-part test:
1. No more than .5 CC (Combined Chlorine) as tested with a proper kit you can read about and link to from here:
pool-school/pool_test_kit_comparison
2. AND your water is crystal clear
3. AND your water loses no more than 1 FC overnight - which will show that you have no more organics that will re-populate when you let your chlorine drop below shock level.
To perform this shock process, you must:
1. have a proper test kit that will give you accurate results on your FC, CC and CYA (at a minimum)
2. read pool school and get a handle on pool water maintenance and how to use the Pool Calculator, and the importance of following the Shock Process instructions completely
3. you must test for your CYA level and super-dose your pool with BLEACH to arrive at Shock Level for your CYA value and you must keep your chlorine level at that Shock Level for a sustained amount of time to pass the three-part test listed above. For some pools, that may mean you will test and add chlorine every few hours for several days. For other pools, it may only take one day of super-dosing at Shock Level. It all depends on what you have going on in your water, and to KNOW that answer you need a proper test kit - your eyes alone will not be able to answer the question accurately.
If you let up now, you will likely get behind the organics and they will again flourish and turn your water nasty. Keep going with the shock process and follow it to completion and you will have, and be in a position to keep, a crystal clear pool all season. Many of our members who regularly test with the appropriate test kit and add only those chemicals needed based on those test results, will go YEARS without needing to shock their pool. You are on your way - don't let up!!