I do not know much about this Spidercide character aside from him wanting to kill Ben Reilly and having symbiote like powers.

His main body is Omega Red, his hands are the ML Toxin and Marvel Select Venom, his hand spear is a cast of the Select Carnage, his head is also the Select Venom.
His lower feet... if you ever look at it and try to make it... will also frustrate you. I tried various sculpting tactics and methods to try and make it look like that and work but it was just not working for me. If you do get it to work, then bravo.
Oh, his arm spikes are actually some wood and sculpt to fit it along.