non-TWBT tilesets:
(https://i.imgur.com/nwVTbFA.png)
(https://i.imgur.com/tX1jkye.png)
(https://i.imgur.com/JXh9C57.png)
(https://i.imgur.com/OknK0bs.png)
With Another natural scheme (http://dwarffortresswiki.org/index.php/DF2014:Color_scheme#Another_natural_scheme) palette
(https://i.imgur.com/gfhivUw.png)
(https://i.imgur.com/cvEL35y.png)
(https://i.imgur.com/SxE8vCb.png)
(https://i.imgur.com/8TOMmUu.png)
(https://i.imgur.com/P7x49MI.png)
(https://i.imgur.com/dUdjP2K.png)
(https://i.imgur.com/fc6qXHt.png)
(https://i.imgur.com/pfPHlIz.png)
(https://i.imgur.com/EvzkyxT.png)
(https://i.imgur.com/PLXub1T.png)
(https://i.imgur.com/8yHoSMy.png)
(https://i.imgur.com/5FplSsD.png)
(https://i.imgur.com/eAs68Vv.png)
(https://i.imgur.com/OrDXumi.png)
(https://i.imgur.com/ME2pZ0i.png)
(https://i.imgur.com/PZlPZDI.png)
(https://i.imgur.com/4jzsPtP.png)
(https://i.imgur.com/wsRGkXe.png)
(https://i.imgur.com/Q56VF7w.png)
With (Yet) Another scheme (http://dwarffortresswiki.org/index.php/DF2014:Color_scheme#.28Yet.29_Another_scheme) palette
(https://i.imgur.com/RUeXMtO.png)
(https://i.imgur.com/tIhAiB8.png)
(https://i.imgur.com/8l4v6Ro.png)
(https://i.imgur.com/vodkQph.png)
(https://i.imgur.com/0SC4zog.png)
(https://i.imgur.com/ih19deN.png)
(https://i.imgur.com/laLeFO5.png)
(https://i.imgur.com/jNW00Ar.png)
(https://i.imgur.com/4qkJrtC.png)
(https://i.imgur.com/M1f14td.png)
(https://i.imgur.com/F3Z8Iy8.png)
(https://i.imgur.com/bvxMbkn.png)
(https://i.imgur.com/3E9sQrN.png)
(https://i.imgur.com/jKBd7E0.png)
(https://i.imgur.com/mFIgaQv.png)
(https://i.imgur.com/zCPu0iT.png)
With Lee's Colour Scheme (http://dwarffortresswiki.org/index.php/DF2014:Color_scheme#Lee.27s_Colour_scheme) palette(https://i.imgur.com/GLO3VVW.png)
(https://i.imgur.com/ystyUSr.png)
(https://i.imgur.com/osdBcqf.png)
(https://i.imgur.com/jgzRDsP.png)
(https://i.imgur.com/uNk83YV.png)
(https://i.imgur.com/DCWswWZ.png)
(https://i.imgur.com/JyMN3w0.png)
(https://i.imgur.com/OKTCmgn.png)
(https://i.imgur.com/JWuQjzD.png)
(https://i.imgur.com/zmebWdA.png)
(https://i.imgur.com/oUEyOV2.png)