well,

varanus timorensis is a very shy species, you wont see much of tehm exceptf or quick glimpses here and there until they acclimate.
They need large enclosures (even though they are "dwarf monitors")
that need to be well build to withstand the amount of humidity they should be provided. with tree monitors and arboreal monitors caging that is taller than you are is the best way to go, the feel safest looking down on you or your dog or whatevere might be entering the room in which they reside (because they feel the safest high up in trees). Really not a species for beginner lizard or varanid species, a good beginner monitor species would be an ackie (varanus acanthurus) but on the same note they would not be a good beginner lizard species.