Not very funny. Does anyone really watch this show anymore? To make it funnier, make the jokes more universally appealing, not just funny to people who watch this show.
The idea of creating a crossover between the Harry Potter universe and the Thomas The Tank Engine universe (they're both in England) is novel. However it's badly executed and lacks focus.
Prose and formatting:
The writing is extremely inconsistent, and not it a funny way. It just looks like you're jumping from one idea to another with no apparent focus at all. Randomness can be funny, but this is not funny-random. It's stupid-random.
There's only one image, and it's a shitty one. Go get better quality images.
To your credit, the topic is esoteric and has potential for greatness. It's just strange enough to become surreal humor. Spend more time on it too.
Spend more time writing this article. Look at featured articles and see what they did to be considered funny.