Citizen scientist maps should deserve more attention, they are not just another renderings of already-known images but beautifully crafted high quality (and resolution) cartographic products.
The Goddesses of Venus
by Eleanor Lutz (USA)
A continuation of the Medieval map of Mars project, this unusual map takes you to the land of goddesses.
Maps of Mercury
by atlas-v7x (DeviantArt) (New Zealand)
This series of Mercury maps show Mercury as no one has seen it before. These maps use MESSENGER topographic and color albedo data alone and combined. Nomenclature is dual, blue names are albedo features, white ones are topographic.
https://atlas-v7x.deviantart.com/art/The-Planet-Mercury-686594207
https://atlas-v7x.deviantart.com/art/The-Planet-Mercury-685464940
https://atlas-v7x.deviantart.com/art/The-Planet-Mercury-686592967
Craters of the Moon
by atlas-v7x (DeviantArt) (New Zealand)
This thematic map shows the topography of the Moon with crater names accompanied with little flags that show the nationality of the person the crater was named after.
https://atlas-v7x.deviantart.com/art/Craters-of-the-Moon-685022114
The Planet Venus / Venus – Map of Craters
by atlas-v7x (DeviantArt) (New Zealand)
Generic map of Venus, based on old Magellan radar altimeter data, with a fresh, terrestrial look. The Venus crater map looks as if it was taken from a School Atlas. Very Earth-like colors of very alien world with a random distribution of impact craters symbolized with little suns, otherwise to small to show up at this scale.
https://atlas-v7x.deviantart.com/art/The-Planet-Venus-687359995
https://atlas-v7x.deviantart.com/art/Venus-Map-of-Craters-685020808
47 Mars exploration zones for a future human mission
By Mateusz Pitura (Poland)
Did you know that Mars Exploration Zones still have no Wikipedia entry? Until a Wiki editor would discover that we have dozens of candidate human Mars mission targets, here is the map of these sites.
https://universumae.deviantart.com/art/47-Mars-exploration-zones-for-future-human-mission-717559880
Titan Texture Map 8k
by FarGetaNik (DeviantArt) (Germany)
This map is at least as good as the new Google Earth Titan map and combines infrared equatorial coverage with polar radar swaths. Dark areas show lakes at the poles and dunes at the equator.
https://fargetanik.deviantart.com/art/Titan-Texture-Map-8k-665838936
Also this year:
Photomosaic Maps of Pluto
https://fargetanik.deviantart.com/art/Pluto-Texture-Map-16k-643938442
https://fargetanik.deviantart.com/art/Pluto-Color-Map-16k-693675588
Photomosaic Map of Io
https://fargetanik.deviantart.com/art/Io-Truecolor-Texture-Map-8k-708688293
Which one is your favorite planetary Citizen Map in 2017?
Vote for it: https://goo.gl/forms/LuvVr2uC5IwZsWEJ2
ICA Commission on Planetary Cartography 