Yeah if you're tiring of it perhaps better to end the project on a positive note rather than letting it turn into a horrible chore.
Just get the current angle looking good and it'll be a wonderful addition to your portfolio.
As for the colour, that shot looks fine to me. In fact your earlier one looked quite OTT on the contrast when shown on my relatively expensive panel. Are your panels TN ones? They tend to ship with all sorts of crazy settings and it can be hard if not impossible to get them looking reasonably neutral, not ideal when doing visual work.
I remember when I first got this monitor all the work I'd been doing on my previous cheap one looked awful because it literally couldn't show the amount of detail this one can — what I thought was white was really light shades of grey/colour, etc. ![]()