Realistically - the entrance needs sorting out properly. I hate what they've done with it, it is a dreadful way to welcome anyone to anywhere let alone a theme park which should be a place of joy and escapism.
It would kind of be OK if it left you feeling safe but security, it's primary aim being to keep out restricted items, is worse than it was previously as so long as you don't have a bag you saunter on through the middle with no checks at all. Yeah, I'm sure everyone keeps their knives, drugs and firearms in a bag!
They need to make the entrance welcoming while achieving at least some level of security. I don't really know what the answer is, but the mess we currently have which achieves neither is not it!
Inside the park I'd just like it cleaned. So much of it is so grotty. Ride stations and shops especially are filthy. It's not much to ask and should be a basic but there is clearly no system in place to actually clean things.