Hi, welcome aboard. No specific criteria. Just make threads in proper sections and do not make double/multi posts. Exceptions are thread in local sections (translation).
Put ANN thread here:
https://bitcointalk.org/index.php?board=159.0And if you offer bounty program make a thread here:
https://bitcointalk.org/index.php?board=238.0Note. You as newbie are not allowed to post pictures (will appear as link). If you want to make threads with pictures you have to ask older members to post it on your behalf or ask to quote your posts (this will show the images as well).
Good luck