yes, the posing isn’t really that good, and use the camera and not screenshot.
For the posing, here’s a few pointers:
Start by picking them up by either the head or chest (i use the head, it’s a BIT easier, but adds an extra step), and lift the body up until the feet are touching the ground and the knees are bending only slightly, only slightly. Freeze. Take the foot. Put it flat on the ground in the position you want. Freeze. Take the knee and pose it to the angle of choice. Freeze. Repeat for other leg. Then, check to see if your character’s butt is seriously sticking out. (It probably is). If it is, go around, grab the character around the crotch area, hold use, and press your back key. Freeze. Go look again. Repeat until the butt is normal. Next, position the chest to where it needs to be. You may have to move the lower stomach area to make the model not twisted a bit (this happens a lot with G-Man and Alyx). Next, position the arms, starting with the upper arm, lower arm, then hand in that order (make sure to compensate for the briefcase if you use G-Man!!). Next, unfreeze the head and reposition it. Then use eye poser so that he’s looking where he needs to. Afterwards, tweak the face a bit. Make sure you don’t overdo it. Next, tweak lighting and such to fit your scene, throw in a few finishing touches, and take your picture with the camera function! Yes, it does take quite a while, but patience is the key. I’ve had to redo entire poses because something got out of place and was unfixable.
Oh, and for dog, do what I basically told you, but start with the large back part of the body, not the head.
Oh, and I apologize for bad grammar/spelling if there is any, but I’m quite tired.