I haven't actually tried the Polychromos yet, they're sitting on a shelf tempting me, but they're my Christmas present!
Maybe I'm being overly pessimistic about Lost Ocean - I think the paper's just a lot whiter than Enchanted Forest, so it looks a bit cheaper. In fairness, that's to go alongside the pencils for Christmas, so maybe it colours quite nicely - who knows? Massively fiddly pictures though - not sure how easy some of those will be to colour!
Thanks for the tip about the watercolour pencils, maybe I'll try that. I don't mind in a way, because it's quite nice that he does want to sit down and colour - it's more that he nicks pages I wanted to colour in!
And more pictures please people - let's get a bit more inspiration! I'm still doing the frog, although a good couple of evenings this week and I hope to have finished it (DH is out, so I reckon glass of wine and a bit of colouring for me!).