Thanks for the feedback. Funnily enough that photo was taken before we put Alan in and we decided to leave the hammock out as we weren't convinced by it. I'm so glad now! Everything else in there i ransacked Amazon reviews for hamster safety as there's so many things to consider! I have a few of the toys you've listed (like the ball to chew) but i left out the rainbow bridge as a few people said it splintered when chewed
I'll keep the others you've suggested for when we're adding in the future! New toys always welcome.
I was concerned about the substrate as he was monkey barring last night and i wasn't sure about his landing as the ceiling is high on this cage. There's a good few inches of bedding and it looks pretty soft but i might add another couple more! He's quite the acrobat now he's got the means.
The best addition is that adventure playground it kept him occupied for ages and he's currently snuggled up asleep in it!