Never realised that, interesting.
The 2005 coin that's listed as 3rd portrait is different from the original 3rd portrait.
The original one being just neck and head, but the one on your 2005 coin appears to be shoulders upwards, so should that be listed as 5th portrait?

Original Maklouf portrait

2nd Maklouf portrait
Although the Queen is still wearing the same Royal Diadem, it appears to be completely different portrait.
Don't know enough about Gibraltar coins, but an interesting find.
Hopefully someone else can explain
Thanks for sharing.
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I'm not an expert in any kind of coins, but I reckon I'm good at research and will do my best to help. Feel free to tell me my identifications/valuations/gradings are wrong. It's the only way I'll learn.