Ive had nothing but problems with uni mould, I'm clearly doing some thing wrong haha.

I would suggest it's insufficient application of release agent. Were you using a chemical release agent or wax? 

I was using easy lease, 4-5 coats.

Have you used it before? 

No, its the first time using the mould and easy lease

As said it looks like not enough release applied.

I don't do the 4 or 5 coat thing, I apply coats until you get that feel of silk, on the 4th,5th,6th coat what ever it takes you suddenly feel a difference in how the release agent feels when applied, all goes super smooth and has a feel all of its own that it didn't have before.

Not sure but looks like you have some print through from the heavy fiberglass cloth behind... 

How heavy did you apply the Easy-lease? 

my friend i had the same crap only different options. That caused old wax or not enough release agent. Or i think mainly that piece that you waxed not eat good wax to get out after molding that way it copy surface to your mold. that was to me when i had 0 knowledges and experience. Wish you good luck.