they already look poor

those are the actual sizes of the images, not the desired size <div id="main">
<h1>Pictures</h1>
<img width='594' height='292' alt='alt text is a requirement' src="Pictures/3DIM_poster.jpg" />...

twoum + twoum

Runs away, giggling

fish, and birds, 'see' magnetism
may or may not be that our senses can't detect the senses that other creatures may or may not be using.
Ghosts,
If ghosts existed there would be standing room...