Actually, Hector looks like he did a pretty good job in there for his first time! I do agree with Vlad--generally, you don't need to bathe your rat unless he is really dirty (and you probably shouldn't bathe him too often, because it actually dries out their skin, which then makes them overproduce their nasty oils!).
BUT, it is definitely a good idea to get him used to water, and the way you did it was pretty good. If you look at some of my videos on youtube, you can see a general progression that I did with my boys in order to get them used to water. We do "pea fishing", where I put a bunch of frozen peas in water and they have to grab them out. I started off with a plate of VERY shallow water, and they gradually got into deeper and deeper pans and tubs until they were half-submerged, and they had no problem going in by themselves. This is a great method to get them used to water, and it will come in handy when you actually need to bathe them later on.
Here is when they were babies and on about week 2 of pea fishing training
Here is when they were more used to it, and had their big tub
Generally speaking, though, you probably won't need to bathe him until he is quite a bit older and is less able to wash himself. (That's what I'm having to do with my boys now, because they are very old, so they do get baths a bit more frequently.)
