Hello - yes, I can still make the changes you want without any problem. The way the site works is that the first-ranked designer may submit new entries during "judging" phase until the Contest Holder is ready to select the winner.
Will you let me know what additional changes you would like to see and I'll be happy to make them. Also, if you have a preference as to where you want to see the brown and forest green, please let me know.
Thank you -
Ignacio