1st and 10th houses are the most "obvious"houses and the most important for our "outside" impression to others
the 7th house (descendant) is the opposite of the ascendant.
which means it shows the last impression people have about you after they already met you.
7th house shows obvious enemies our relationships with others,marriage etc
1st is the most important for first impression and then is the 10th.
because 10th house its our highest point in natal chart and also shows how the "public""society" (people who dont know us)
see us
how we tend to look in public.
for example you may have sun and rising libra but you have pluto conjoining the 10th house axis ,this may influence how you look to other people to
"society"and "public"
10th house is the house of reputation
but the most important is the 1st .
in your case shows the impression you give to others after they already met you,
they become very obsessed with you ,and its tough for them to forget you
be carefull though because pluto ALWAYS gives a love or hate with passion situation
other people may love you with passion and some others may hate you with passion
or maybe the contrary you may love or hate others with passion
everything pluto does its always extreme dont forget that scorpio is the sign of the extremes.and pluto in scorpio its in domicile.
but again its depends the aspects
you also have to look your dominant planet in your natal chart and dominant signs to somehow get an idea of yourself the planet and signs that influence your character and life
dont go on astro.com and do the pullen astrolog thing the results it gives are usually hella innacurate (most users say this and even astrologers)
astrotheme.com has the most accurate planetery dominancy system (but you have to pay)
If you dont want to pay on astrotheme.com
try this
http://gordianobrunati.com/cgi-bin/cal01EN.cgi but its not that accurate but its better than astro.com
but astrotheme.com has the best accurate analysis results in planet- sign -house dominancy