Hi
I know I can’t help very much as I only recently started my first lace project, but I know how hard I found it and had to rip right back and tink rows many times before I finally got to grips with it.
What may help a little is to look at the photos of the finished piece in a different colour (if you aren’t already) in the projects on ravelry. I think it is hard to see the pattern properly when it is white on white. If you go on ravelry there are some really clear photos.
I’m afraid to me it looks like both of your lace pieces have gone off track. There is a central line which should run vertically through the centre of the diamond and on your line on photo 2 has gone off to the right.
The number of stitches should probably stay the same. I now in my pattern one of the rows increases by lots but 2 rows later it decreases the same amount to return to the correct number. My pattern tells me not to count stitches on those certain rows which have additional stitches.
I found life lines really helpful and have put in a new life line before every pattern repeat. Mine is a 12 row repeat, I put a life line through between the rib and the lace (on the rib decrease row before my lace started) and then on every row 12. I would advise doing similar so that you have a safe row to rip back to.
Good luck with it, I’m sure you can get some more experienced help with how to work this pattern, I mainly stopped by for moral support.