Elwood McCarrin is a collector of 'rare' things, he can usually be found on a barstool in the Albatross Bar and Grill in Haven.
Elwood is always on the lookout for new items for his collection and as soon as you talk to him, he will ask you to get a few things for him.
First he will ask you to go fish up 6 rainbow pearls from Haven Lake, just outside the tavern. If you don't have a fishing rod, go buy one from a fisherman and then just start fishing for shellfish. Once you have caught 6 shellfish with rainbow pearls, you can go back to the tavern and talk to Elwood.
Elwood will then send you to Alberta Giacco in Vesper to get a portrait painted. To get the portrait painted, just do as Alberta tells you and then return to Elwood to tell him that the painting is on its way.
The third thing Elwood wants you to get is the autograph of the famous minstrel Gabriel Piete. Gabriel will of course require you to do something to get his autograph, but when you have it you can return to Elwood for your final task.
The fourth and last item that Elwood sends you to get is a set of toy monster figurines, which are made by Tomas O'Neerlan, a toymaker from Trinsic. Tomas will have a small task for you before he can make the figurines, this task may or may not be a bit dangerous depending of the specifics.
Once you have made sure the toy figurines will be made you can return to Elwood for your reward, which will be some gold, a magic item and a section of an obsidian statue.