A look at the C64/C128 version. Its room layout follows the original as expected and all the nasties appear the same.
The 'ramps are square however, I'm not sure why I have to assume some kind of programming style or limitation. They can be quite difficult to jump through. Willy still has that 'floating' jump feeling as per Manic Miner although it seems slightly better.
I recall reading there was a bug with The Forgotten Abbey and the item was not reachable. It is although it costs a life as you have to fall off the platform.
Its very difficult to get to the item on the flagpole on The Top Of The House as Willy falls if you attempt to walk across the top and the bottom section in Rescue Esmeralda is very difficult to jump through. The top and bottom exits match the spectrum version here, the bottom one drops you onto the Emergency Generator and the top one takes you to the Ballroom.
There are some slightly blurry sprites (which gives a 'double rope' effect) I'm assuming this is an emulator / graphics issue as when the game is not paused these are not noticeable.
Anyway onwards with the pics, I've not included *every* single room however I've taken snapshots of a fair majority of them, the ones hopefully to be of interest anyway.