Sadly description don't do much as one's description might not be the same as another person even if they describe the same animal. Quality might be at play also, I have seen VERY nice pastel that could pass as super and vice versa.
To identify morphs it's really a matter of hands on experience (picture are good too but not always, depends on the quality of the picture), usually once you have seen enough of something you can tell them apart but again not always (gets complicated with subtle mutation, and some combos).
Over time you will develop an eye for it, and trust me even after 10 years there are still things that I have issues with which is why I don't work with them (I hate feeling confused when hatching stuff)