How's my brooder

[MadMadamMim]

Hello all, so my 3 babies should be arriving from Metzers on Tuesday and I want to make sure everything is perfect. Here are some pictures of my setup, it's in a spare room. Besides adding food & water any tips to make it better? Or is it just fine? Thanks in advance for any helpful advice.
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[Miss Lydia]

Hello all, so my 3 babies should be arriving from Metzers on Tuesday and I want to make sure everything is perfect. Here are some pictures of my setup, it's in a spare room. Besides adding food & water any tips to make it better? Or is it just fine? Thanks in advance for any helpful advice.
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It is really nice, what is on the bottom? and what breed of ducks? they grow really fast and if large breed maybe out of that brooder pretty quick. sure does look nice and clean. for now.

Oh and

 

[MadMadamMim]

I have pine shavings on the bottom. I'm getting two welsh harlequin & one cayuga.