Seen various art tracing this moment for different showings of style as well as other vectors, but here's my take on it. 
It's good to be back, not only for Soarin' but also for vectoring for myself, this episode brought many good opportunities including other characters just like the Manehattan episode.
Time: 3 hours
Reference Screenshot (MLPFiM S04E10 - Rainbow Falls, 07:39)::origin()/pre01/47b9/th/pre/f/2014/020/4/a/imminent_disaster_soarin__reference_by_chainchomp2-d72s8yy.png)
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:origin()/pre00/fdfb/th/pre/i/2014/237/c/1/academy_soarin__by_chainchomp2-d6xndbk.png)
:origin()/pre00/d2d1/th/pre/i/2014/083/a/2/angry_shrug_soarin__by_chainchomp2-d730syz.png)
:origin()/pre00/070f/th/pre/i/2016/140/e/1/my_face_feels_much_better__by_chainchomp2-d9ct8wl.png)
:origin()/pre00/181b/th/pre/i/2014/075/e/9/sly_flash_sentry_by_chainchomp2-d74kgjy.png)
:origin()/pre00/51c2/th/pre/i/2016/140/f/9/my_suit_is_gone__but_all_is_well__by_chainchomp2-d9ctama.png)
:origin()/pre00/c9e0/th/pre/i/2014/234/0/b/bada_s_suitless_soarin__by_chainchomp2-d65tadx.png)
:origin()/pre00/21d5/th/pre/i/2014/288/3/d/party__where__by_chainchomp2-d75bogr.png)
:origin()/pre00/95ab/th/pre/i/2014/085/3/9/shocked_suitless_soarin__by_chainchomp2-d5zmvq3.png)
:origin()/pre00/b71f/th/pre/i/2012/183/5/c/happy_soarin___by_baumkuchenpony-d4rdpy0.png)
:origin()/pre00/2bda/th/pre/i/2015/273/2/e/_kay_what_s_happening__by_chainchomp2-d9avf31.png)
:origin()/pre00/89ec/th/pre/f/2016/081/c/9/vector__427___spitfire__3_by_dashiesparkle-d9w0sc8.png)
:origin()/pre00/53fb/th/pre/i/2017/287/9/8/thunderlane_by_cloudyglow-dbqjgzx.png)
:origin()/pre00/4449/th/pre/i/2011/210/e/e/soarin_revectorized_by_kna-d421iiu.png)
:origin()/pre00/a8c2/th/pre/i/2014/121/d/f/still_best_brothers_by_chainchomp2-d7go4x2.png)
:origin()/pre00/f4b5/th/pre/i/2012/276/c/8/flying_soarin_by_baumkuchenpony-d5go1zn.png)
:origin()/pre00/5610/th/pre/i/2014/048/0/e/smiling_doctor_whooves_by_chainchomp2-d68lnfu.png)
:origin()/pre00/2ef2/th/pre/i/2015/071/c/f/flagship_horse_by_chainchomp2-d8lgm4t.png)
:origin()/pre00/fde6/th/pre/f/2014/019/9/4/soarin_flipping_the_bird_by_jeatz_axl-d72xw89.png)
:origin()/pre00/312d/th/pre/i/2012/224/a/d/happy_soarin___suitless_by_baumkuchenpony-d4x2rb1.png)
:origin()/pre00/3623/th/pre/f/2014/025/c/f/rainbow_and_soarin_quality_time_by_jeatz_axl-d73b31a.png)
:origin()/pre00/1cea/th/pre/i/2013/054/1/9/soarin__flying__no_wb_suit__by_rainbowderp98-d5vyluk.png)
:origin()/pre00/7b0d/th/pre/f/2014/224/d/7/vector__soarin_looking_at_his_pal_by_paulyvectors-d7uwow9.png)
:origin()/pre00/fd28/th/pre/i/2011/263/7/e/worried_soarin_vector_by_speedingturtle-d4agmq7.png)
:origin()/pre00/2329/th/pre/i/2012/035/1/4/soarin_by_moongazeponies-d4om3t9.png)
:origin()/pre00/1927/th/pre/i/2012/183/9/4/soarin___by_bobthelurker-d55rkvg.png)
:origin()/pre00/4205/th/pre/f/2015/067/9/5/vector__107___spitfire_by_dashiesparkle-d8k9e32.png)
:origin()/pre00/56d2/th/pre/i/2014/103/b/0/imminent_disaster_soarin__by_chainchomp2-d731otm.png)
Soarin is the most attractive pony in the MLP universe