Don't know what a good pose is, or how to get it, well heres how you can find out how!
First what you need is to get the pet out, play with them and feed them, spray them once with the flea spray and the give them a really good brush all over, then take them to the playpen with nothing in there at all except for a box of their fav treats and a brush in the supply case.
First pick them up, they will spin round, when their feet look paralel, Drop them and start snapping pics by pressing the space bar, your dog may get frightened and hide but keep on going, press the space bar sort of once every 1-2 seconds so they don't get scared, after a while they will begin to puff their chest out, and hold their heads up, when they turn and face forward with their eyes looking at you, save that picture praise them and give them one treat, do this until they get it almost perfect. Then they will learn to love doing great poses. Hope this has helped you, I have added an animation below of Solstice performing a show pose, it took a while to get the last pic, try not to get impatient with your dogz if they run off just pick them up and start again. (P.s. this is the same dog in all the pics he is texed with a large furfile, meaning he changes pattern.)
Some breeds like the poodle and siamese pose differently, Use the same process but watch out for the poses that are below the animations instead of the usual one.
With Catz its pretty much the same process, though they do a different pose.
Now not saying this pose is perfect, but it got him to SGCH, (6 BIS and 1 first) So it works well for the example pose.
To see if the head is high enough, a line is drawn from the eyes to the tip of the nose, the head height varies in different breeds but generaly the top of the ears should be roughly parallel with the eyes, the shoulders and rump should be straight with a gentle dip in the back, the feet should be alligned and you should only be able to see 2 legs the chest in nicely puffed out so that you can draw a circle inside it. he has a proud look in his eyes and the tail is very nicely curved.

This is a general catz pose, this breed being the Russian blue. The head should be fully facing the front, with both ears and eyes being seen clearly. The back should be straight, the tail either straight or curved in. The front feet placed together and the back feet spread apart. with a gap in between them. The 'puffy' breeds like persians and especially c. persians will have little or no gap as it is covered by their puffy-ness.
Example poses
Here you can see example poses for various breeds, including weaknesses. This also shows the pose types we accept in our shows. Mouse over for info.

Hope this has been helpful to you. ~ Dee
Oh, BTW. The points awarded in most shows are:
BIS (Best in show): 5 pts.
1st : 4 pts.
2nd: 3 pts.
3rd: 2 pts.
hm (honourable mention): 1pt.
Some sites offer a judges favourite or some like award that can be any amount of points or just an award.
...And the titles you can gain are: *drum roll*
RC (reserved champion) = minimun of 5 show points.
Ch (champion) = minimun of 10 show points.
GCh (Grand champion) = minimun of 15 show points.
MGCh (Master Grand Champion) = minimun of 20 show points.
SGCH (Supreme grand champion) = minimun of 30 show points.
Most people retire petz once they reach SGCH to give other petz a chance or to show their other petz. sometimes sites will hold a champions show just for SGCH's. But I have seen on some sites the title of UGCH which is ultimate grand champion but you need 50 points to get there. No easy task.