Those are neither rawr nor do I think it's OpenGFX+Landscape (though they decidedly look similar to some coastal tiles found in ancient OpenGFX as does their water, maybe also OpenGFX+Landscape - but the grass doesn't seem to match with those). I'd say: checkout which of your selection of active NewGRFs defines them, try OpenGFX+Landscape first and continue removing one by one until they look differently
Software: r27112
Description: Graphics set: original_windows (0)
NewGRFs:
44440A01 FCEEC76CF44EC23E7FE9C88048CF11CC av8_aviators_aircraft_set-2.21\pb_av8w.grf
44442302 AFF1124BD0B36FC6B875AF4226BF96AF mauvetoblackw.grf
4F424403 4D4DA9DBFCD2446425E0D18DB65A9C4E grassyknoll.grf
4A430002 237EC8B4432F26C2721B69D0814045E6 indstatr100.grf
44573452 48CF5FC0DEB895136F337A7E563FC66D dwe_stat_r7.grf
6D620601 3B95D97BD7B178045FD4669E48C56CF9 newstats.grf
74677462 C12237229F14A2D942439775231FC1EB total_bridges.grf
52455400 1600687C50C5AB1E72EDD487CAD50E2A ae_cityw.GRF
54570200 ABF92A68DC086E5918C94C37C5B251FA usstatsw.grf
52455200 0E5A9C5ACD2BCAF7FA0658C3F905A660 rural_stations-1\ae_ruraw.grf
52455300 37C0B839B13C4B18051580C81EEDF427 suburban_stations-1\ae_subuw.grf
42414753 5C384730817B74DDF2092DB3F8E8E91E glassstationw.grf
58534602 181DF5910D8F6B29E3D2940DEDE43042 FOUNDW.GRF
72777473 431E58F4ACA83A2B4E25EEC5FD2E1EEF ukts_2.1.grf
4D480103 29A2931C75F2DB1251C53950A54CBF29 mphfencew.grf
5245F0F0 02538A8208D8816284B0079764783534 newtree-2010.08.29\newtree.grf
43485053 6E7600417E45294FC6958A9578B2E04B chips_station_set-1.3.0\chips.grf
4A5A0401 54BC35DCCB000AA83ED9A25B8B697B06 jstationsw195.grf
43415261 808FD3F3D2863F86DD18B18AA6C4E990 NARoadsw.grf
41533031 F3A0A556505B7A94733D85B892C2070C swehouses111.grf
504E0001 E7781323D2B0086E2E76342DAA036054 ukwaypointsw.grf
424B5462 22288D56D1D5B3ACF4AE77069D5FCDDD BKTunw12.grf
4F472B34 5030F25CA77DE5080DB906235CD70005 ogfx-landscape.grf
4A430001 4CF50E2A770F6672A77A8842A3129ECA dstatsw.grf
43415000 8F77143D9432C52206D1730F9EEDFAE1 opengfx_airports-0.4.1\ogfx-airports.grf
414E0101 5D665C64693A438E3046C22666F46E08 fish_ship_set-0.9.2\fish.grf
4F472B31 4E0B2D42462F295F36AFBA90D239A323 ogfx-trains030.grf
4672780A B4E2FB43C2CCD3E26F4524E45DFEE4AF monkeybarbridge.grf
BEBE0004 1CCD12310D9CC5BEE371B18648D77618 EmptyGRF.grf
BEBE0100 D03A949A78BEAC47B391C5D58D72658E FarmObjects.grf
49464E4F BAC22546C151037276AA7775F17AB3A9 SNO-Supercheese'sNewObjects.grf
444E0C00 B5D2AB5FC93A09E1FAB5F0DB82307ECF VASTfences.grf
444E0800 334F8C4697455569073434DB107F864A VASTobjects030.grf
44573553 EF7529EBEAF35758EE07E628B25F608D dwe_newobj.grf
52571203 796D837623C84868D8638C784022FE0B eGRVTS2-189.grf
31FF0101 6A1DC804CFA0B8548D0DBFAD2DDDC281 3iffnames5.grf
4F472B33 485D504341EE48DA8B1E73142CC5069A 3iffogfx-industriesNG.grf
4D470305 2E96B9AB2BEA686BFF94961AD433A701 basecosts.grf
56420404 3581919585D872198B0C22729412A59B RAWR.grf