Though I think the wig needs a bit of adjustments. Yuno's hair seems a bit more straighter in some parts while your wig seems a bit more curvier.
Details on the upper part of the dress seems to lack those 'line' designs shaping around the chest and stomach area.
However overall, it's very well done. Your mannerisms in some of the pictures capture Yuno rather well. The cosplay itself also reflects her character accurately.
So aside from some minor details, this was really well done. Good job.
When in doubt, just take the next small step.
With that next step take a deep breath. It calms the mind.
When the mind is calm you realize the best is still yet to come.