3ds max is really THE tool in the industrie... however quality dasn't come cheap.
bryce on the other hand is a good program too, alot cheaper than MAX
Photoshop can be used too but just dasn't have the quality for abstract art,
some examples of each program I used:
3ds MAX:https://www.wincustomize.com/skins.asp?library=8&SkinID=11055
3ds MAX:https://www.wincustomize.com/skins.asp?library=8&SkinID=11004
Bryce:https://www.wincustomize.com/skins.asp?library=8&SkinID=6294
Bryce:https://www.wincustomize.com/skins.asp?library=8&SkinID=7363
Photoshop:https://www.wincustomize.com/skins.asp?library=8&SkinID=4957
Photoshop:https://www.wincustomize.com/skins.asp?library=8&SkinID=4976
hope you find your way to the perfect program for you.