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\documentclass{standalone}
\usepackage{tikz}
\begin{document}

\begin{tikzpicture}
\fill [white] (-1,-0.) rectangle (4.7, 5.7);
\fill [fill=red!90!black] (0,0) to [out=120, in=250] (-0.2,4.2) -- (-0.5,5) -- (-0.3,5.2) -- (1.8,4.5) -- (3.7,5.2) to [out=-70, in=70] (3.9,0) -- (3.2,0.5) to [out=200, in=-20] (0.6,0.5) -- cycle;
\draw [cyan!80, fill=white, line width=8pt] (0.75,3.65) circle [radius=1.3];
\draw [cyan!80, fill=white, line width=8pt] (3.25,3.7) circle [radius=1];

\fill [black] (1.05,3.5) circle [radius=0.45];
\fill [black] (2.9,3.65) circle [radius=0.3];

\fill [white] (1.25,3.5) circle [radius=0.15];
\fill [white] (3.05,3.6) circle [radius=0.12];

\fill [yellow!80!orange] (1.85,3.2) -- (2.35,3.2) -- (2.1,2.6) -- cycle;
\end{tikzpicture}
\end{document}

1d
awarded  Enlightened
1d
awarded  Nice Answer
1d
comment Quiver plot with pgfplots: scale arrowheads with arrowsize
I wouldn't say it's a duplicate, since that answer also scales the width of the arrow line, not just the size of the head.
1d
comment Quiver plot with pgfplots: scale arrowheads with arrowsize
See How can I draw a quiver plot with varying line thickness? for a way of scaling the line width and arrowhead size of quiver plots.
1d
comment How to deal with large numbers in chart axis labels
@emab What field are you working in?
Oct
21
comment Inserting graph from gnuplot to latex
Do you have a particular reason for not exporting directly to PDF using the pdfcairo terminal, or using the cairolatex terminal?
Oct
21
awarded  Enlightened
Oct
21
awarded  Nice Answer
Oct
20
answered PDF for the hypergeometric distribution
Oct
18
comment Is it possible to plot non-numerical data alongside normal data in a normal plot?
The style is called every node near coord (not every node near coords).
Oct
18
answered Is it possible to plot non-numerical data alongside normal data in a normal plot?
Oct
18
revised How to enable minor y ticks for a logarithmic axis
edited title
Oct
18
answered How to enable minor y ticks for a logarithmic axis
Oct
17
answered pgfplots ybar intervals on the left instead of on the right
Oct
17
revised How to move a set of nodes without modifying each coordinates?
added 11 characters in body
Oct
17
awarded  Populist
Oct
17
comment TikZ3 arrow tip specification for “no arrow” or “shift tip” option
Can you try arrows={->[sep=10pt]-}?
Oct
16
comment How to move a set of nodes without modifying each coordinates?
\tikzset{every node/.append style={yshift=3mm}}. Or \begin{scope}[yshift=3mm] ... \end{scope}.
Oct
15
comment 2 meta in pgfplot
It would be much better if you only asked a single question in each post. That way, it's easier for others with similar problems to find the question. Try to phrase your questions as general as possible, and make sure the example code is minimal, i.e. reduce it as much as possible.
Oct
14
comment Plotting a composition of the logarithm function (base 10) and a linear function
@Adelyn: I'm not sure I understand your comment. A list of the mathematical functions defined in the PGF math engine (which is the engine used in PGFPlots) can be found in the PGF manual, currently on page 935. Three logarithmic functions are defined: ln, log10, and log2.