If you are still casting around for ideas for your Second Life Halloween outfit, might I suggest a Halloween hunt on now at AsteroidBox? The hunt is completely free, and you don’t have to join any group! I will show you each of the nine bloody hunt prizes, so you can decide for yourself if you want to do this hunt.
The avatar used in the pictures in this blogpost is a Bakes on Mesh-enabled combination of an Akeruka Cleo mesh head and an Altamura Juliet mesh body. (Both were free group gifts earlier this year.) I have found that most clothing designed for the Maitreya Lara mesh body fits the Altamura mesh body with a minimum of fuss.
If you have a recent Akeruka Bento mesh head like Cleo, you can hit the redelivery terminal in the lobby of the Akeruka store to get an updated version, which includes a separate Bakes on Mesh head in the package. Altamura has released a relay for use with Bakes on Mesh (it’s available to Altamura group members for free at this exact SLURL; the Altamura Design/Mesh Avatars group costs L$50 to join). You do have to buy and install the Omega system kit on the Juliet body before you can use the Bakes on Mesh relay (it’s for sale for L$99 at this exact SLURL).
The skin I am using on this avatar is by Atmoic Bambi, and is called Noori Noir. Unfortunately, the store is also no longer on the grid. This is an older system skin, so the area around the fingernails doesn’t quite match the Altamura mesh nails. I found that my earlier solution, the free finger and foot fixes available from League which I mentioned in this earlier blogpost, didn’t work for grey skin. To fix the area around the fingernails to match this deathly grey pallor exactly, I used nail covers by SmitCoStudios, which you can edit and tint any colour you wish (they are available for L$25 on the SL Marketplace).
The hair is the Pulled Back Bun (black) from the Library / Accessories / Hair Design Options / Pulled Back Bun folder in your existing Second Lofe inventory—free, adjustable, tintable, uncomplicated. The bloody skin tattoos came from a past Bloody Mess hunt at Fallen Gods, and I picked them up several years ago. (The bright red bloody forehead tattoo came from a different past hunt, along with a bloody blonde wig.)
Now that we’ve got the preliminaries out of the way, let’s get to the hunt! Here is the Carina laced corset paired with the Canopus boots:

The next outfit consists of the Selene shirt and Malus pants (the black pumps are part of a free sample pack of Slink-compatible shoes from Garbaggio, available on the SL Marketplace; Altamura mesh bodies have Slink-compatible feet). The blood-splattered Notos umbrella is also an AsteroidBox hunt prize! It comes with the pose shown here.

Here we have the bloody Theia glasses and the Auriga sweater:

And finally, we have something a little different: a couple of minidresses in black and red! These both look so good, so you could probably wear them for a non-Halloween night out.
This is the Powehi dress, which comes with a HUD to change the metal textures:

And finally we have the sexy Eridani dress:

Happy Halloween hunting! You can obtain the first hunt hint by clicking on the board at the entrance to the AsteroidBox store, shown in the first picture above. Each hunt prize comes with a hint for the next prize.