Looking really good so far Nino, you're doing well
One little trick i sometimes use when i want to blend new paint into original colour is to lift the masking along the edge of where the new paint will meet the old paint. So instead of sticking the masking hard down which would leave a line, i just leave the masking tape, contact or whatever im using, lifted and curled back slightly a few millimetres. This will allow the paint to slightly blow under and feather in with the old paint and not leave a noticeable line. I used a similar trick to this on my KISS pf for the white in the centre around the bonus inserts, (first time i tried it on a pf)
i hope that makes sense
i hate trying to describe how i do things.. especially when im tired