This is my first grow did make right choice by not flushing and all that 2 weeks ago

The plant doesn't have toxic symptoms, so it's fine. They don't flush the earth in outside grows and that weed turns out fine, correct? The things projected onto flushing at the end are mostly figments of imagination. Sometimes it's good to just irrigate with plain, pH'd water the last little bit just to ensure you are erring on the side of cannibalization rather than over-feeding it on accident. Think of the strength of your canopy as a buffer. A healthy plant offers a ton of room for error. A slow trend down is safer than increasing lushness of foliage at the end. Causing a bunch of excess damage to the canopy while doing it isn't necessary. Maybe a wee bit too much N was given, but it's not going to drastically impact anything. No clawing, but a bit dark in some sports based on the top-down perspective photos - hint of glossiness too. But in other photos looks fine.. so it's tough to be certain reading lushness. Mostly maxing out at 5-finger leaves indicates some stress or imbalance of nutrients provided. These are things to try to fix, but in the end this is a robust weed that performs well even under duress. Something to work on but not beat yourself up about. I'm still tweaking process to avoid occasionally having an overfed plant near the end, but not because i think it'll make a drastic difference at this stage (referencing small to near-zero problems). Aim small; miss small. Looks like it was defoliated at some point - probably part of the 5-finger max seen. Can see large portions of trunk, lower stems, and completely through the plant, which is not efficient use of light. Also less of a buffer when feeding isn't optimal. Keep the leaves next time. Leaves make everything better. Removing leaves never causes the plant to focus on other things. Remove leaves to reduce risks of pathogens etc... not whimsy. They are increidbly important plant organs.