Ayala scored in victory over Doncaster Rovers on the weekend.
Venus told the Evening Gazette: "I'm really pleased the new lad got a goal.
"I thought he was strong, he was just what we needed and I'm glad he's here. I'm glad the chairman allowed me to have him and I'm glad he did himself justice and me justice.
"I wanted him training on Wednesday and Thursday. I thought it was important I had a look at him.
"I needed a look at him, I knew he was a bit rusty but, to be honest, he was great on the night, he was fantastic.
"The lad's had a few injury problems, he's had some decent clubs and maybe hasn't been given a chance so let's hope we can give him some games and get his career off and running."
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